SSC CGL Tier 1 2014 General Intelligence & Reasoning Questions with Solutions

Explanation

By interchanging the signs + and × and swapping the numbers 6 and 8 in the original equation 8 × 6 + 2 = 22, the new expression becomes 6 + 8 × 2. According to the BODMAS rule, multiplication is performed before addition. Calculating the product gives 8 × 2 = 16, and adding the remaining term results in 6 + 16 = 22. This matches the right-hand side of the equation.

Explanation

Based on the given instructions, the operator substitutions are: × becomes ÷, ÷ becomes ×, - becomes +, and + becomes -. Applying these changes to the equation in option a gives:

50 ÷ 5 × 2 + 30 - 25

According to the BODMAS rule, the operations are performed in the order of Division, Multiplication, Addition, and then Subtraction:

First, divide 50 by 5: 10 × 2 + 30 - 25

Next, multiply 10 by 2: 20 + 30 - 25

Then, add 20 and 30: 50 - 25

Finally, subtract 25 from 50: 25

Since the calculated result is 25, the equation matches the value given on the right-hand side.

Explanation

The logical pattern followed in these equations is to add the first and the third numbers and then subtract the middle number from their sum. The formula can be represented as (First Number + Third Number) - Second Number = Result.

Applying this logic to the given equations: For 2 × 4 × 6 = 4, we have (2 + 6) - 4 = 8 - 4 = 4. For 9 × 3 × 7 = 13, we have (9 + 7) - 3 = 16 - 3 = 13. For 4 × 7 × 6 = 3, we have (4 + 6) - 7 = 10 - 7 = 3.

Following the same rule for the unsolved equation 9 × 7 × 8: (9 + 8) - 7 = 17 - 7 = 10.

Explanation

The pattern follows a specific logic where the four numbers in each set, let us call them a, b, c, and d, are combined using the formula (a × b) + (c + d).

For the first equation 3 × 5 × 7 × 2 = 24, the calculation is (3 × 5) + (7 + 2) = 15 + 9 = 24.

For the second equation 2 × 4 × 6 × 8 = 22, the calculation is (2 × 4) + (6 + 8) = 8 + 14 = 22.

Applying this same system to the unsolved equation 4 × 4 × 8 × 9, we calculate (4 × 4) + (8 + 9) = 16 + 17 = 33.

Explanation

The relationship follows a simple cyclic shift pattern where the first letter of the word is moved to the last position while the remaining letters maintain their relative order. In the word SOCIAL, the first letter S is moved to the end to form OCIALS. Applying this same logic to the word DRIVEN, moving the first letter D to the end results in the word RIVEND.

Explanation

The relationship between the terms in the first pair is determined by the ratio (1/8) / (1/64) = 8. To maintain the same analogy for the second pair, the ratio between 1/16 and the missing term 1/x must also be 8. Setting up the equation (1/16) / (1/x) = 8 simplifies to x / 16 = 8. Multiplying both sides by 16 gives x = 16 × 8 = 128.

Explanation

The relationship between the first pair of numbers is established by multiplying the first number by 3. 29 × 3 = 87

Applying the same mathematical operation to the second number: 79 × 3 = 237

Explanation

The relationship between the words in the first pair is based on intensity. Humiliated is an extreme or more intense form of being embarrassed. Following the same logic, the word that represents an extreme or more intense degree of being frightened is terrified. Both pairs consist of synonyms where the second word amplifies the state of the first word.

Explanation

The relationship established in the first pair is that of antonyms. Macabre describes something gruesome, horrifying, or ghastly, while lovely describes something pleasant and beautiful. To complete the second pair, the word baneful, which means harmful, destructive, or poisonous, must be matched with its opposite. Un harmful serves as the antonym for baneful because it describes something that does not cause injury or damage.

Explanation

The relationship between the terms is based on a constant shift of +2 in the alphabetical position of each letter. In the first pair, A+2=C, Y+2=A, R+2=T, R+2=T, J+2=L, and C+2=E, resulting in CATTLE. Applying this logic to NCPDCAR, the transformation is N+2=P, C+2=E, P+2=R, D+2=F, C+2=E, A+2=C, and R+2=T. This sequence of letters forms the word PERFECT.

Explanation

A cylinder is a three-dimensional solid figure that possesses volume, surface area, and depth. It is defined by two parallel circular bases connected by a curved surface. Unlike the other figures mentioned, which are two-dimensional plane shapes existing only in a single plane with length and width, the cylinder occupies space in three dimensions. Square, trapezium, and parallelogram are all types of quadrilaterals, making them part of the category of two-dimensional polygons.

Explanation

A submarine is distinguished from the other vessels by its primary design and function to operate beneath the surface of the water. While surface vessels travel on top of the water, a submarine utilizes ballast tanks to control its buoyancy, allowing it to submerge and navigate completely underwater.

Explanation

Malayalam is a palindrome, meaning it reads the same forwards and backwards. The sequence of letters M-A-L-A-Y-A-L-A-M remains identical whether read from the beginning to the end or from the end to the beginning.

Explanation

The sequence MIGE is the odd one out because it follows a positional difference pattern of -4, -2, -2 between its consecutive letters. Using the numerical positions of the letters in the English alphabet where M = 13, I = 9, G = 7, and E = 5, the gaps are calculated as 13 - 9 = 4, 9 - 7 = 2, and 7 - 5 = 2. This deviates from the consistent pattern of -4, -3, -2 found in the other alternatives. In those cases, the sequence always subtracts 4 from the first letter, 3 from the second, and 2 from the third. MIGE fails to follow this established decrement of intervals, making it the exception in the set.

Explanation

The pair 42:4 is the odd one out because the first number is not perfectly divisible by the second number. In this specific case, 42 ÷ 4 = 10.5. This distinguishes it from the other pairs where the first number is an exact multiple of the second, maintaining a consistent pattern of integer division that is absent here.

Explanation

The year 2012 is a leap year because it is divisible by 4 without a remainder, as 2012 ÷ 4 = 503. In the Gregorian calendar, a year is a leap year if it is divisible by 4, except for century years which must be divisible by 400. While a leap year contains 366 days, the other years listed are ordinary years consisting of 365 days because they are not divisible by 4. This specific chronological property distinguishes 2012 from the rest of the group.

Explanation

To arrange words in dictionary order, we compare their letters sequentially from left to right. All words share the first two letters Eu. Comparing the third letter, g in Eugenic (IV) precedes p in the other four words, making IV the first in the sequence. Among the remaining words beginning with Eup, the fourth letter e in Eupepsy (II) precedes h in the rest, placing II second. Next, considering words starting with Euph, the fifth letter o in Euphonic (III) and Euphony (V) precedes r in Euphrasy (I), which makes I the final word in the list. Finally, between Euphonic (III) and Euphony (V), the seventh letter i in Euphonic comes before y in Euphony, meaning III precedes V. The resulting alphabetical order is IV, II, III, V, I.

Explanation

The meaningful order follows the physiological stages of the human digestive process and metabolic cycle. Nutrition is the primary process of obtaining and utilizing food for growth and energy. Once food is consumed, Digestion occurs to break down complex substances into simpler, soluble molecules. These simplified nutrients then undergo Absorption into the bloodstream through the intestinal walls. Finally, the remains of the process that cannot be used by the body are removed through Excretion. This sequence represents the logical biological flow from the intake of nutrients to the elimination of waste.

Explanation

The series follows the pattern of perfect cubes of consecutive integers starting from zero. Each term is determined by the formula n³ for n = 0, 1, 2, 3, 4, 5, ....

The first term is 0³ = 0. The second term (missing) is 1³ = 1. The third term is represented by 2³ = 8 and 3³ = 27, which appear together as 827. The fourth term is 4³ = 64. The fifth term is 5³ = 125.

By following this cubic progression, the value that completes the series is the cube of 1.

Explanation

The series follows a logic where each position in the letter groups progresses independently. The first letters B, D, and F correspond to alphabetical positions 2, 4, and 6, showing a consistent increment of 2 (+2). Applying this to the next term, 6 + 2 = 8, which corresponds to the letter H. The second letters M, N, and O correspond to positions 13, 14, and 15, showing a consistent increment of 1 (+1). The next letter in this sequence is 15 + 1 = 16, which is P. The third letters X, W, and V correspond to positions 24, 23, and 22, showing a consistent decrement of 1 (-1). The next letter in this sequence is 22 - 1 = 21, which is U. Combining these three results produces HPU.

Explanation

The series follows a pattern where each subsequent term is determined by subtracting a value that decreases by 3 at each step. By calculating the differences between consecutive terms, we find:

655 - 637 = 18 637 - 622 = 15 622 - 610 = 12 610 - 601 = 9

The sequence of values being subtracted is 18, 15, 12, 9, which are consecutive multiples of 3 in descending order. Following this arithmetic progression, the next value to be subtracted from 601 is 6 (since 9 - 3 = 6).

601 - 6 = 595

Explanation

The given sequence 1, 5, 25, 125, … is a geometric progression where each term is obtained by multiplying the preceding term by a constant factor of 5. Alternatively, the series can be viewed as successive powers of 5 starting from an exponent of zero: 5⁰ = 1, 5¹ = 5, 5² = 25, and 5³ = 125.

To determine the missing terms, we continue this pattern by multiplying the last known term by 5 repeatedly: The fifth term is 125 × 5 = 625 (which is 5⁴). The sixth term is 625 × 5 = 3125 (which is 5⁵). The seventh term is 3125 × 5 = 15625 (which is 5⁶).

Following this common ratio of r = 5, the next three numbers in the sequence are 625, 3125, and 15625.

Explanation

To determine the portion of the class that consists of girls, the number of girls must be divided by the total number of students in the class. The total enrollment is calculated by adding the number of girls x and the number of boys y, giving a total of x + y. The part of the class composed of girls is therefore expressed by the fraction (x)/(x + y).

Explanation

The problem defines two sets of conditions for the unknown number n. The first condition specifies that 5 < n < 9, which means the number must be greater than 5 and less than 9. The second condition specifies that 7 < n < 11, meaning the number must be greater than 7 and less than 11. To find the number that satisfies both conditions, we look for the intersection of these two ranges. A number that is simultaneously greater than 7 and less than 9 is 8. Thus, 8 is the only integer that fulfills all the requirements of being greater than 5, less than 9, greater than 7, and less than 11.

Explanation

In a row of n trees planted at equal intervals, the number of equal spaces or gaps between the trees is n - 1. For 25 trees, there are 25 - 1 = 24 equal intervals. Since the total distance between the 1st and the 25th tree is 30 m, the length of a single interval is calculated by dividing the total distance by the number of gaps:

Interval length = ³⁰⁄₂₄ = 1.25 m

The distance between the 3rd tree and the 15th tree is determined by the number of intervals between them. The number of gaps between the i-th and j-th tree is j - i. For the 3rd and 15th trees, there are 15 - 3 = 12 intervals.

The total distance is the product of the number of intervals and the length of each interval: Distance = 12 × 1.25 = 15 m

Explanation

The word STATION can be formed because all its constituent letters are present in the word STIMULATION with the necessary frequency. The source word STIMULATION contains the letter S once, T twice, I twice, M once, U once, L once, A once, O once, and N once. To construct the word STATION, one requires one S, two Ts, one A, one I, one O, and one N. Since each of these letters is available in the source word in the required amount, STATION can be successfully created.

Explanation

The second letter e in the word Vertex should be changed to o to form the word Vortex. A vortex is defined as a mass of whirling fluid or air, such as a whirlpool or whirlwind, characterized by a spiral or circular movement around an axis. Changing the second letter results in a word that directly fits the definition of spiral motion.

Explanation

The coding logic involves swapping the positions of adjacent letters in pairs throughout the word. In the word TRANSFER, the letters are divided into pairs as (T, R), (A, N), (S, F), and (E, R). Reversing each pair results in RT, NA, FS, and RE, which combines to form the code RTNAFSRE.

Applying the same logic to the word ELEPHANT, we divide the word into four consecutive pairs: (E, L), (E, P), (H, A), and (N, T). Swapping the characters within each individual pair gives us LE, PE, AH, and TN. Concatenating these segments in their original sequence results in the coded word LEPEAHTN.

Explanation

The coding logic follows a specific pattern based on the alphabetical position of each letter. For each letter, the digits of its position in the English alphabet are summed, and then 1 is added to that sum to arrive at the code digit.

For the word MONKO: M is the 13th letter: (1 + 3) + 1 = 5 O is the 15th letter: (1 + 5) + 1 = 7 N is the 14th letter: (1 + 4) + 1 = 6 K is the 11th letter: (1 + 1) + 1 = 3 O is the 15th letter: (1 + 5) + 1 = 7 This results in the code 57637.

Applying the same logic to KLJMN: K is the 11th letter: (1 + 1) + 1 = 3 L is the 12th letter: (1 + 2) + 1 = 4 J is the 10th letter: (1 + 0) + 1 = 2 M is the 13th letter: (1 + 3) + 1 = 5 N is the 14th letter: (1 + 4) + 1 = 6

Combining these digits gives the code 34256.

Explanation

The statement specifies that the electric supply will be cut after 12 O'clock for a duration of three hours due to repair work. This implies that until 12 O'clock tomorrow, the electricity supply is expected to be functional. Consequently, it is a logical inference that the residents of Anand Colony are able to use their electrical appliances during the period leading up to the scheduled outage. The second inference regarding training for economical electricity use is disconnected from the provided information, which focuses solely on a maintenance-related power disruption.

Explanation

Anand's journey can be mapped using a coordinate system starting from his home at (0, 0). His first movement 10 km to the east brings him to the point (10, 0). From there, traveling 5 km south leads to the point (10, -5). Finally, moving 10 km west brings him to (10 - 10, -5), which simplifies to the coordinate (0, -5). The distance between the starting point (0, 0) and the final point (0, -5) is calculated as √((0 - 0)² + (0 - (-5))²) = 5 km. Since the final position is directly below the starting point on the vertical axis, he is 5 km to the south of his home.

Explanation

Let the distances between the villages be represented by their coordinates on a straight line. We are given BD = 10 km and the relationship CB = CD + 2 km. Considering the arrangement of points on a line, if C lies between B and D, the total distance BD is the sum of the segments BC and CD.

BD = BC + CD

Substituting the given value of BD: 10 = BC + CD

From the problem, we know BC = CD + 2, which implies CD = BC - 2. Substituting this expression for CD into the distance equation: 10 = BC + (BC - 2) 10 = 2BC - 2 12 = 2BC BC = 6 km

In this configuration, CD equals 4 km. Since A is exactly between D and C, the distances AD and AC are both 2 km. The sequence of villages on the line is B, C, A, and D, which satisfies all the conditions provided in the question.

Explanation

This problem follows a standard syllogistic logic pattern based on the transitive property of set inclusion. The first premise states that all professors are learned, which can be expressed as P ⊆ L (where P is the set of professors and L is the set of learned people). The second premise states that all learned people are gentle, expressed as L ⊆ G (where G is the set of gentle persons). In formal logic, if A ⊆ B and B ⊆ C, then it must be true that A ⊆ C. Therefore, since every member of the set of professors is a member of the set of learned people, and every member of that set is necessarily gentle, all professors must be gentle persons. The inference is a logically certain and valid conclusion derived from the given premises.

Explanation

The pattern followed in this analogy is a constant positional shift of +9 for each letter in the group. By assigning numerical values to the letters based on their position in the English alphabet, where A=1, B=2, and so on, we can observe the following transformation for the first pair: B(2) + 9 = K(11) F(6) + 9 = O(15) J(10) + 9 = S(19) N(14) + 9 = W(23)

Applying the same mathematical relation Position(Lₙₑ_w) = Position(Lₒₗ_d) + 9 to the third group DHLP: D(4) + 9 = M(13) H(8) + 9 = Q(17) L(12) + 9 = U(21) P(16) + 9 = Y(25)

The numerical sequence 13, 17, 21, 25 corresponds to the letters M, Q, U, and Y.

Explanation

The relationship between the first pair of letter clusters follows a constant alphabetical shift of +3 for each corresponding letter. In BPTF : ESWI, the transitions are B +3 E, P +3 S, T +3 W, and F +3 I. Applying the same logic to find the first term of the second pair from GDRY, we subtract 3 from each letter's position: G - 3 = D, D - 3 = A, R - 3 = O, and Y - 3 = V. This results in the letter cluster DAOV.

Explanation

The relationship between the numbers is based on a constant ratio. In the first pair, the ratio of the second number to the first is 24 / 60 = 0.4. Applying this same ratio to the second pair, the missing number is calculated as 480 × 0.4 = 192.

Alternatively, the relationship can be seen by comparing the first terms of both pairs. Since 480 is 8 times 60 (60 × 8 = 480), the second term of the second pair must be 8 times the second term of the first pair. Calculating 24 × 8 yields 192.

Explanation

The first two numbers in the analogy are consecutive cubes: 125 = 5³ 216 = 6³

The third number is also a cube: 1331 = 11³

The base numbers 5 and 11 are prime numbers. In the first pair, the relationship follows the pattern of a prime number (5) and the next integer (6). In the second pair, the sequence moves to the next prime number after 11, which is 13.

The 13th letter of the alphabet is M. Among the given options, only MQUY starts with the letter M. The letters in this option follow a constant arithmetic progression with a common difference of 4: M (13) + 4 = Q (17) Q (17) + 4 = U (21) U (21) + 4 = Y (25)

Explanation

The analogy follows the pattern where the first word is a specific, extended, or intense form of the second word. A marathon is a long-distance race that requires significant endurance over a prolonged period. Similarly, hibernation is a state of deep inactivity and metabolic depression in animals that serves as a specialized, long-duration form of sleep. Both marathon and hibernation represent extended versions of the general activities of racing and sleeping, respectively.

Explanation

The relationship between the first pair of words is based on antonyms. Elated refers to a state of being extremely happy or in high spirits, while despondent signifies being in low spirits or feeling a loss of hope. To maintain this logic for the second pair, the antonym of enlightened must be identified. Enlightened describes someone who possesses knowledge, spiritual insight, or a rational understanding of a subject. Ignorant is the direct opposite, as it describes a person who lacks knowledge, education, or awareness.

Explanation

The numerical relationship between the two numbers in the other pairs is based on the formula x² - x, where the first number is the square of the second number. Specifically, 27² = 729, 19² = 361, and 26² = 676. In the case of 476 and 32, this relationship does not hold because 32² = 1024, which is not equal to 476. Alternatively, the square root of 476 is approximately 21.81, which does not match the second number 32.

Explanation

The letters in BDEG correspond to the alphabetical positions 2, 4, 5, and 7. The increments between consecutive letters are calculated as 4 - 2 = 2, 5 - 4 = 1, and 7 - 5 = 2, forming the pattern +2, +1, +2. This specific sequence of intervals makes this group the outlier, as the other groups follow a consistent pattern of +2, +2, and +3 between their respective letters.

Explanation

Famine is categorized as a slow-onset disaster because it develops gradually over a prolonged period rather than occurring as a sudden event. It is a socio-economic and biological crisis characterized by extreme food scarcity and mass hunger within a population, often resulting from a combination of environmental factors and human-made failures such as poor distribution, economic instability, or conflict. This long-term progression and its heavy reliance on administrative and social factors distinguish it from the rapid-onset physical calamities that are triggered abruptly by immediate geological or atmospheric shifts.

Explanation

Enforce refers to the act of compelling observance of or putting a law, rule, or obligation into effect. It signifies the implementation and active maintenance of a regulation. This term represents the execution of authority to ensure compliance, which is conceptually distinct from the other three terms that all share the common meaning of cancelling, invalidating, or erasing something that previously existed.

Explanation

The numbers 343, 2401, and 49 are all powers of the integer 7. Specifically, 49 = 7², 343 = 7³, and 2401 = 7⁴. The number 149 is not a power of 7, as 7² = 49 and 7³ = 343, and no integer power of 7 results in 149. Furthermore, 149 is a prime number.

Explanation

All five words share the common prefix rational. To arrange them in dictionary order, we compare the letters that follow this prefix.

The ninth letter in rationale (2) is e, while in the other four words, the ninth letter is i. In the alphabet, e comes before i, which places rationale (2) first in the sequence.

Among the remaining words, we examine the tenth letter. It is s in rationalism (1), z in rationalization (3), z in rationalize (4), and t in rationality (5). Alphabetical order dictates that s comes before t, and t comes before z. This positions rationalism (1) second and rationality (5) third in the order.

To determine the order between rationalization (3) and rationalize (4), we look at the eleventh letter. Rationalization (3) has the letter a at this position, whereas rationalize (4) has the letter e. Since a precedes e alphabetically, rationalization (3) comes before rationalize (4).

Combining these steps, the words follow the sequence of 2, 1, 5, 3, 4.

Explanation

The given sequence follows a pattern where each term is generated by adding increasing powers of 2 to the previous term. Calculating the differences between consecutive terms reveals the underlying progression:

5 - 3 = 2 (2¹) 9 - 5 = 4 (2²) 17 - 9 = 8 (2³)

The differences form a geometric progression with a common ratio of 2. Following this logic, the next difference must be 2⁴ = 16. Adding this difference to the last known term gives 17 + 16 = 33.

Alternatively, the sequence can be represented by the general formula aₙ = 2ⁿ + 1, where n represents the position of the term in the sequence starting from 1. Applying this formula for the fifth term results in 2⁵ + 1 = 32 + 1 = 33. Another valid logic is that each term is obtained by multiplying the previous term by 2 and subtracting 1, such that 17 × 2 - 1 = 33.

Explanation

The given sequence is UHFNUFUFNUNIIFFNUJIKINIFNUT. To find the occurrences where N is in the middle with F and U as its immediate neighbors, we scan for the patterns F-N-U or U-N-F.

Looking at the sequence character by character: The first occurrence is at the 3rd, 4th, and 5th positions: UH(FNU)FUFNUNIIFFNUJIKINIFNUT. The second occurrence is at the 8th, 9th, and 10th positions: UHFNUFU(FNU)NIIFFNUJIKINIFNUT. The third occurrence is at the 15th, 16th, and 17th positions: UHFNUFUFNUNIIF(FNU)JIKINIFNUT. The fourth occurrence is at the 24th, 25th, and 26th positions: UHFNUFUFNUNIIFFNUJIKINI(FNU)T.

In all four instances, the letter N is centrally placed with F and U on either side. There are no instances of the reverse pattern U-N-F in this specific string. Therefore, there are exactly 4 such occurrences in the series.

Explanation

The meaningful order represents the sequential path of food through the human digestive system, also known as the alimentary canal. The process begins at the Mouth (4), where ingestion and initial mechanical and chemical breakdown occur. Food then travels down the Oesophagus (6), or food pipe, to reach the Stomach (5) for further digestion. From the stomach, the semi-digested food moves into the Small intestine (3), which is the primary site for nutrient absorption. The remaining undigested matter passes into the Large intestine (1) for water and electrolyte reabsorption, and finally, the waste is collected in the Rectum (2) before being expelled from the body. This anatomical sequence follows the logical physiological flow of digestion from ingestion to excretion.

Explanation

The series follows a pattern where the difference between consecutive terms corresponds to the cubes of consecutive natural numbers starting from 2.

The first difference is 11 - 3 = 8, which is 2³. The second difference is 38 - 11 = 27, which is 3³. The third difference is 102 - 38 = 64, which is 4³. The fourth difference is 227 - 102 = 125, which is 5³.

Following this logic, the next difference must be 6³ = 216. To find the missing term, we add this difference to the last known term: 227 + 216 = 443.

Explanation

The given sequence consists of two interleaved series. The terms at the odd positions (1st, 3rd, 5th, 7th, 9th) form the first sub-series: 3, 8, 15, ?, 35. The differences between successive terms in this sub-series are consecutive odd numbers starting from 5. Specifically, 8 - 3 = 5 and 15 - 8 = 7. Following this pattern, the next difference must be 9, making the missing term 15 + 9 = 24. This is verified by the subsequent term in the sub-series, as 35 - 24 = 11. Alternatively, these terms follow the general form n² - 1, where n takes the values 2, 3, 4, 5, and 6. The missing 7th term of the overall sequence corresponds to n = 5, giving 5² - 1 = 24. The even-positioned terms (15, 24, 35, 48) follow the same n² - 1 pattern for n values 4, 5, 6, and 7.