SSC CHSL Tier 1 2012 General Intelligence & Reasoning Questions with Solutions

Explanation

The relationship between the numbers in the first pair is defined by multiplying the first number by 5 and then subtracting 1.

6 × 5 - 1 = 30 - 1 = 29

Applying the same mathematical pattern to the next number:

24 × 5 - 1 = 120 - 1 = 119

Explanation

The relationship followed in the analogy is: First number × 4 + 2 = Second number

Applying this logic to the first pair: 7 × 4 + 2 = 30

Applying the same logic to the second pair: 17 × 4 + 2 = 70

Explanation

A duckling is the offspring of a bird, whereas the others are the offspring of mammals.

Explanation

Delhi is a landlocked National Capital Territory situated in northern India, far from any ocean, and does not have any coastline or seaport. This geographical characteristic of being entirely landlocked makes it fundamentally different from the major coastal port cities.

Explanation

The letters in the alphabetical series follow a specific positional difference pattern. In the other letter groups, the second letter is 3 positions behind the first, and the third letter is 2 positions ahead of the second, representing a pattern of minus 3, plus 2.

In the case of PLN, the alphabetical positions of the letters are P = 16, L = 12, and N = 14. The difference between the first and second letters is 16 - 12 = 4, representing a shift of minus 4, which deviates from the minus 3 shift pattern.

Explanation

In MPR, the first two letters, M and P, are not consecutive alphabets as there is a gap of two letters (N and O) between them. In all other letter groups, the first two letters are consecutive.

Explanation

The number 31 is a prime number because it is only divisible by 1 and itself, meaning it has exactly two distinct factors. A prime number cannot be formed by multiplying two smaller natural numbers. All the other numbers in the group are composite numbers because they have more than two factors and can be divided evenly by numbers other than 1 and themselves. This fundamental mathematical property distinguishes 31 from the rest of the set.

Explanation

The given sequence of numbers is 6, 9, 12, 15, 18, 22. Except for 22, all other numbers in the series are multiples of 3. Alternatively, the sequence is an arithmetic progression with a common difference of 3:

6 + 3 = 9 9 + 3 = 12 12 + 3 = 15 15 + 3 = 18

Following this pattern, the next term should be 18 + 3 = 21. Since 22 does not follow this rule and is not divisible by 3, it is the odd number in the group.

Explanation

To arrange the given words in alphabetical order, we compare their starting letters. The starting letters of the words are T for Tutor, W for Wonder, V for Verify, X for Xylophone, and U for Umbrella. Arranging these starting letters in standard alphabetical order yields the sequence T, U, V, W, X. Matching this order to the corresponding words gives Tutor (1), followed by Umbrella (5), Verify (3), Wonder (2), and finally Xylophone (4). This results in the correct arrangement sequence of 1, 5, 3, 2, 4.

Explanation

To arrange the words in alphabetical order as they appear in a dictionary, we compare them letter by letter from left to right.

All five words begin with the prefix Imm.

Comparing the fourth letters: The fourth letter of Immerse is e. The fourth letter of Immigrate is i. The fourth letters of Immolate and Immortal are o. The fourth letter of Immunity is u.

Since e comes before i, which comes before o, which comes before u in the English alphabet, Immerse (3) is first, followed by Immigrate (1), then the two words starting with Immo, and finally Immunity (2) is last.

To determine the order between Immolate (4) and Immortal (5), we compare their fifth letters: l and r. Since l comes before r, Immolate (4) comes before Immortal (5).

This gives the final alphabetical order as Immerse, Immigrate, Immolate, Immortal, Immunity, which corresponds to the sequence 3, 1, 4, 5, 2.

Explanation

By sequentially placing the letters from option D (adddatd) into the gaps of the series, we complete the pattern as "batdad / daddad / batadd". This matches the alternating structure of the three-part sequence.

Explanation

Each letter in the sequence increases by a constant value of +3 positions in alphabetical order.

For the first letter, G (7) plus 3 is J (10), J (10) plus 3 is M (13), and M (13) plus 3 is P (16).

For the second letter, O (15) plus 3 is R (18), R (18) plus 3 is U (21), and U (21) plus 3 is X (24).

For the third letter, N (14) plus 3 is Q (17), Q (17) plus 3 is T (20), and T (20) plus 3 is W (23).

Combining these results gives the term PXW.

Explanation

The phrase "all but 18 die" indicates that all of the sheep died except for 18 of them. This means that 18 sheep survived and remained alive.

Explanation

We can represent the given relationships using age inequalities:

Bima is younger than Rita: Bima < Rita Rita is younger than Kala: Rita < Kala Kala is elder than Nila: Nila < Kala Nila is younger than Bala: Nila < Bala

Combining these relations: Kala > Rita > Bima Kala > Nila Bala > Nila

From these expressions, Kala is older than Rita, Bima, and Nila. Since there is no comparison that makes Bala older than Kala, and Kala is established as older than almost everyone else in the group, Kala is the eldest.

Explanation

Let us represent the seniority relationship using the greater-than symbol >. Kathir is senior to Ganesh gives: Kathir > Ganesh Ganesh is senior to Apparu gives: Ganesh > Apparu Apparu is junior to Raju gives: Raju > Apparu Raju is junior to Ganesh gives: Ganesh > Raju Combining these statements yields the continuous chain of seniority: Kathir > Ganesh > Raju > Apparu. Kathir is positioned at the top of this hierarchy.

Explanation

The word STANDING cannot be formed because it contains the letter G, which is not present in the base word STANDARDIZATION.

Explanation

The word SPHERE contains the letter H, which is not present in the word SPERMATOGENESIS. Therefore, the word SPHERE cannot be formed using the letters of the given word.

Explanation

To decode the figures 7859, the corresponding letter for each digit can be determined directly from the given coded words.

From the word CENTURION coded as 325791465, the fourth letter T corresponds to the fourth digit 7.

From the word RANK coded as 1859, the second letter A corresponds to the second digit 8, the third letter N corresponds to the third digit 5, and the fourth letter K corresponds to the fourth digit 9.

Combining these mapped letters for the digits 7, 8, 5, and 9 in sequence gives T, A, N, and K, which forms the word TANK.

Explanation

The coding scheme shifts each letter of the original word forward by one position in the alphabetical sequence.

For MADRAS: M shifts to N, A shifts to B, D shifts to E, R shifts to S, A shifts to B, and S shifts to T, yielding NBESBT.

Applying this same systematic shift of plus one to the word BOMBAY: B shifts to C, O shifts to P, M shifts to N, B shifts to C, A shifts to B, and Y shifts to Z, yielding CPNCBZ.

Explanation

The natural colour of human blood is red. According to the given code, red means green. Consequently, the colour of human blood in this coded language is green.

Explanation

The given sequence follows an arithmetic progression with a constant common difference of 130: 169 - 39 = 130 299 - 169 = 130

Following this pattern, the next term is calculated by adding 130 to the last term: 299 + 130 = 429

Explanation

The pattern of the series is that each subsequent term is obtained by adding three times the sum of the digits of the preceding term to that term itself.

For the first term, 113: Sum of digits = 1 + 1 + 3 = 5 Next term = 113 + (5 × 3) = 113 + 15 = 128

For the second term, 128: Sum of digits = 1 + 2 + 8 = 11 Next term = 128 + (11 × 3) = 128 + 33 = 161

For the third term, 161: Sum of digits = 1 + 6 + 1 = 8 Next term = 161 + (8 × 3) = 161 + 24 = 185

For the fourth term, 185: Sum of digits = 1 + 8 + 5 = 14 Missing term = 185 + (14 × 3) = 185 + 42 = 227

Explanation

The pattern of the operations is based on finding the product of the two numbers and taking the units digit of the resulting product.

For 5 × 7: 5 × 7 = 35, and the units digit is 5.

For 12 × 3: 12 × 3 = 36, and the units digit is 6.

For 8 × 9: 8 × 9 = 72, and the units digit is 2.

Applying this same logic to the final expression: 6 × 8 = 48, which has a units digit of 8.

Explanation

The logic followed in the given equations replaces the minus sign (-) with the addition operation (+).

According to this pattern: 8 - 8 is evaluated as 8 + 8 = 16 7 - 7 is evaluated as 7 + 7 = 14 6 - 6 is evaluated as 6 + 6 = 12

Following the same rule, the value of 5 - 5 is calculated by adding the two numbers: 5 + 5 = 10

Explanation

The pattern followed in each column is that the product of the first two numbers plus the third number equals the fourth number.

In the first column: (5 × 6) + 4 = 30 + 4 = 34

In the second column: (4 × 7) + 2 = 28 + 2 = 30

Applying this same relationship to the third column: (3 × 8) + x = 30 24 + x = 30 x = 6

Explanation

The pattern is determined by analyzing the alphabetical positions of the letters and the sequence of the numbers separately.

For the letters, their positions in the English alphabet increase by 5 in each step: B is the 2nd letter. G is the 7th letter (2 + 5 = 7). L is the 12th letter (7 + 5 = 12). Q is the 17th letter (12 + 5 = 17). Following this pattern, the next letter must be the 22nd letter (17 + 5 = 22), which is V.

For the numbers, the sequence increases by 4 in each step: 7 + 4 = 11 11 + 4 = 15 15 + 4 = 19 Following this pattern, the next number must be 19 + 4 = 23.

Combining the letter and the number gives V- 23.

Explanation

According to the correct mapping of the mathematical operations: − stands for ÷ ÷ stands for +

• stands for × × stands for -

Substituting these operators into the original expression: 175 - 25 ÷ 5 + 20 × 3 + 10

The expression becomes: 175 ÷ 25 + 5 × 20 - 3 × 10

Following the BODMAS rule (Order of Operations):

First, perform the division: 175 ÷ 25 = 7

Next, perform the multiplications: 5 × 20 = 100 3 × 10 = 30

Now, substitute these values back into the expression: 7 + 100 - 30

Finally, perform the addition and subtraction: 107 - 30 = 77

Explanation

The pattern of the equation represents a specific rearrangement of the digits of the two numbers. If we represent the addition of two two-digit numbers as AB + CD, the resulting four-digit number is formed by rearranging the digits in the order ADCB.

For 32 + 45, we have A = 3, B = 2, C = 4, and D = 5. Arranging these in the pattern ADCB gives 3542.

For 47 + 72, we have A = 4, B = 7, C = 7, and D = 2. Arranging these in the pattern ADCB gives 4277.

Applying this same pattern to 86 + 12, we have A = 8, B = 6, C = 1, and D = 2. Rearranging these digits into the ADCB format gives 8216.

Explanation

The man's movement forms a right-angled triangle, where the eastward distance of 3 km and the southward distance of 4 km represent the two perpendicular sides. The shortest distance from the starting point is the hypotenuse of this triangle.

Using the Pythagorean theorem:

Distance = √(3² + 4²)

Distance = √(9 + 16)

Distance = √25

Distance = 5 km

Explanation

Let the starting point be at the coordinate origin (0, 0). Ganesh's movements can be tracked as follows:

First, he walks 20 m East, reaching the coordinate (20, 0). Next, he walks 10 m South, reaching the coordinate (20, -10). Then, he walks 35 m West, reaching the coordinate (-15, -10). Finally, he walks 5 m East, reaching the final coordinate (-10, -10).

Comparing the final position (-10, -10) with the starting position (0, 0): The horizontal displacement along the East-West axis is 10 m. The vertical displacement along the North-South axis is 10 m.

Thus, the straight displacement along either cardinal axis is 10 m.

Explanation

Conclusion I does not follow because the statement specifically uses the qualifier "many editors," which means only a section of editors distort the truth. Generalizing this to state that editors as a whole distort the truth is logically invalid.

Conclusion II does not follow because the statement only points out that the act of distorting the truth by these editors has resulted in more harm than good. It does not establish a universal or comparative rule that distorting the truth is inherently more harmful than other actions or in all contexts.

Explanation

An advertisement is created with the expectation that people will pay attention to it and be influenced by its message, meaning it cannot be assumed that people generally ignore such advertisements. The statement promotes 'X' TV for having better sound quality, which directly implies the existence of other brands in the market for comparison, so 'X' is not the only television available. Additionally, the advertisement focuses entirely on sound quality and makes no reference to price, meaning no logical assumption can be made regarding whether it is the costliest television. Since none of the assumptions can be logically derived from the statement, they are not implicit.

Explanation

Conclusion II directly follows because Statement 3 explicitly asserts that some teachers are spiritual. In syllogisms, a statement given as a premise is accepted as absolutely true, which makes the identical conclusion definitely true.

Explanation

To arrange the words alphabetically, they are compared letter by letter from left to right. The alphabetical sequence of the given words is apply, appreciate, apprehend, and appropriate. In this sequence, apprehend occupies the third position because the prefix appreh- alphabetically follows apprec- and appl-, while preceding approp-.

Explanation

Among the given numbers, 9 is a composite number and a perfect square, whereas all the other numbers are prime numbers.

Explanation

September has 30 days, making it the odd one out because the other specified months all contain 31 days.

Explanation

The relationship established in the given pair is tool to object acted upon, where a saw is a hand tool designed specifically to cut or work on wood. Similarly, a hammer is a hand tool designed specifically to strike or drive a nail. This maintains the identical tool-to-object relationship.

Explanation

Spinach is a leafy green vegetable belonging to the category of greens. This establishes a relationship between an individual food item and its broader classification.

Applying this same relationship, a legume is a plant family characterized by seeds enclosed in pods. Peas are a major agricultural crop and food item that belong to this legume family, thereby completing the analogy.

Explanation

The pattern in the analogy is based on shifting each letter forward by 3 positions in the English alphabetical order.

Comparing AEG to DHJ: A + 3 positions = D E + 3 positions = H G + 3 positions = J

Applying the same pattern to GKM: G + 3 positions = J K + 3 positions = N M + 3 positions = P

This yields JNP.

Explanation

The analogy follows the pattern where the first number in each pair is the square of the second number.

For the first pair: 7² = 49

Applying the same mathematical relationship to the second pair: 17² = 289

Explanation

The given system follows a specific positional rearrangement pattern. For any three digits written in the form a × b × c, the resulting number is obtained by writing the digits in reverse order, which is cba.

In the first equation, 5 × 9 × 7 is rearranged to form 795.

In the second equation, 2 × 7 × 4 is rearranged to form 472.

Applying this same logic to the unsolved equation, the digits of 9 × 7 × 6 are written in reverse order to yield 679.

Explanation

The relationship between the terms is based on the performer and the venue or performance event. An actor is the artist who performs in a play. Similarly, a musician is the artist who performs in a concert.

Explanation

The relationship in the first pair is based on a product and its primary raw material; a book is manufactured using paper. Applying the same logic to the second pair, bread is manufactured using flour as its primary raw material.

Explanation

The letters in the first term QDXM are shifted to obtain the second term SFYN according to a specific position-based pattern: The first letter Q is shifted by +2 to get S. The second letter D is shifted by +2 to get F. The third letter X is shifted by +1 to get Y. The fourth letter M is shifted by +1 to get N.

Following this shift pattern of +2, +2, +1, +1 for the term UIOZ: U shifted by +2 becomes W. I shifted by +2 becomes K. O shifted by +1 becomes P. Z shifted by +1 becomes A, wrapping around from the end of the alphabet.

This yields the term WKPA.

Explanation

The alphabetical positions of the letters in CDEF are C = 3, D = 4, E = 5, F = 6. The alphabetical positions of the letters in UVWX are U = 21, V = 22, W = 23, X = 24.

The relationship between the corresponding letters is a constant shift of +18 positions: 3 + 18 = 21 (U) 4 + 18 = 22 (V) 5 + 18 = 23 (W) 6 + 18 = 24 (X)

Applying this same +18 shift to IJKL (where I = 9, J = 10, K = 11, L = 12) under modulo 26 arithmetic: 9 + 18 = 27, which wraps around to 1 (A) 10 + 18 = 28, which wraps around to 2 (B) 11 + 18 = 29, which wraps around to 3 (C) 12 + 18 = 30, which wraps around to 4 (D)

Explanation

The relationship between the first pair of numbers is established by squaring twice the given number: (x × 2)²

Substituting x = 5 for the first pair: (5 × 2)² = 10² = 100

Applying the same mathematical relation to the second pair with x = 7: (7 × 2)² = 14² = 196

Alternatively, the relation can be written as: x² × 4

For the first term: 5² × 4 = 25 × 4 = 100

For the second term: 7² × 4 = 49 × 4 = 196

Explanation

The pattern followed in the analogy is: x : x + √x + 2

Applying this logic to the first term: 16 : 16 + √16 + 2 = 16 + 4 + 2 = 22

Applying the same logic to the third term: 36 : 36 + √36 + 2 = 36 + 6 + 2 = 44

Explanation

LPG (Liquefied Petroleum Gas) is classified as a gaseous fuel under normal conditions of temperature and pressure. It consists of a mixture of flammable hydrocarbon gases, primarily propane and butane. While it is compressed into a liquid state under high pressure for storage and transportation, it immediately returns to a gaseous state upon release. The other substances in the group are liquid fuels under standard ambient conditions, making LPG different from them.

Explanation

Erg is a unit of measurement, specifically representing work or energy in the centimetre-gram-second (CGS) system of units, whereas the other choices represent physical quantities.

Explanation

The letter group EGI is different because the positional difference between its consecutive letters is +2 and +2, where E is 5, G is 7, and I is 9. In contrast, all the other letter groups follow a consistent positional difference pattern of +2 and +3 between consecutive letters.