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

Explanation

By translating the statements into inequalities, we get: Rita is older than Bima, so Bima < Rita. Kala is older than Rita, so Rita < Kala. This establishes the order Bima < Rita < Kala. Kala is older than Nila, so Nila < Kala. Bala is older than Nila, so Nila < Bala.

From these relations, Kala is older than Rita, Bima, and Nila. Since no person is established as being older than Kala, Kala is the eldest.

Explanation

By representing the seniority relationships using the greater-than symbol (>):

First, Kathir is senior of Ganesh, which means Kathir > Ganesh.

Second, Raju is junior of Ganesh, which means Ganesh > Raju.

Third, Apparu is junior of Raju, which means Raju > Apparu.

Combining these relationships yields the continuous sequence: Kathir > Ganesh > Raju > Apparu

From this established hierarchy, Kathir holds the highest seniority.

Explanation

When the letter group from option B (dadtac) is sequentially placed in the gaps, it completes the series as "b d t a a d d d t d b a a a d c", which follows a repeating triplet pattern of first, second, and third letters across five blocks: "bdt", "aad", "dtd", "baa", and "adc".

Explanation

The series follows a consistent pattern where each letter in a term is obtained by adding 3 to the alphabetical position of the corresponding letter in the previous term.

Analyzing the first letters of the terms, G (7th letter) progresses to J (10th letter) and then to M (13th letter). Adding 3 to 13 gives 16, which corresponds to P.

For the second letters, O (15th letter) progresses to R (18th letter) and then to U (21st letter). Adding 3 to 21 gives 24, which corresponds to X.

For the third letters, N (14th letter) progresses to Q (17th letter) and then to T (20th letter). Adding 3 to 20 gives 23, which corresponds to W.

Putting these letters together in order gives PXW.

Explanation

The phrase "all but 18 die" means that every sheep died except for 18 of them. Therefore, 18 sheep remained alive and were left.

Explanation

The coding follows a pattern where each letter of the original word is replaced by the next immediate letter in the English alphabet, representing a shift of +1.

Applying this logic to the word MADRAS: M shifts to N A shifts to B D shifts to E R shifts to S A shifts to B S shifts to T

Applying the same logic to the word BOMBAY: B shifts to C O shifts to P M shifts to N B shifts to C A shifts to B Y shifts to Z

This yields the code CPNCBZ.

Explanation

The natural color of blood is red. According to the rules of the code language, red means green. Therefore, the color of blood is represented as green in this code.

Explanation

The word STANDING contains the letter G. Since the base word STANDARDIZATION does not contain the letter G, it is impossible to form the word STANDING from its letters.

Explanation

The word SPHERE contains the letter H. The letter composition of the word SPERMATOGENESIS does not contain the letter H. Therefore, SPHERE cannot be formed using the letters of SPERMATOGENESIS.

Explanation

The given codes are based on a direct letter-to-digit substitution.

From the word CENTURION coded as 325791465, we get the following letter-to-digit mappings: C = 3, E = 2, N = 5, T = 7, U = 9, R = 1, I = 4, O = 6

From the word RANK coded as 1859, we get the mappings: R = 1, A = 8, N = 5, K = 9

Using these mappings to decode the number 7859: The digit 7 corresponds to T. The digit 8 corresponds to A. The digit 5 corresponds to N. The digit 9 corresponds to K.

This gives the word TANK.

Explanation

The relationship between the terms is based on the alphabetical positions of the letters, where the letters shift as follows:

First letter shifts by -1: S - 1 = R

Second letter shifts by +1: H + 1 = I

Third letter shifts by +1: I + 1 = J

Using the same pattern for QJK:

First letter shifts by -1: Q - 1 = P

Second letter shifts by +1: J + 1 = K

Third letter shifts by +1: K + 1 = L

Explanation

The logic followed in the given analogy is that the first number is multiplied by 5 and then 1 is subtracted from the product to obtain the second number.

6 × 5 - 1 = 30 - 1 = 29

Applying the same logic to 24:

24 × 5 - 1 = 120 - 1 = 119

Explanation

The relationship between the first pair of numbers is defined by multiplying the first number by 4 and then adding 2.

Applying this rule to 7: (7 × 4) + 2 = 28 + 2 = 30

Applying the same rule to 17: (17 × 4) + 2 = 68 + 2 = 70

Explanation

The relationship between the first two terms is that of antonyms representing the beginning and ending of a sequence. A prologue is the introductory section of a literary work, while an epilogue is the concluding section. Similarly, dawn is the first appearance of light in the morning representing the beginning of the day, and dusk is the transition to darkness representing the end of the day.

Explanation

A histogram is a specific type of bar chart used to represent data distributions. In a similar manner, calligraphy is a specialized, artistic form of hand writing. Both pairs share a relationship where the first term is a specific, stylized, or specialized version of the second term.

Explanation

Each letter in the groups BEHK, PSVY, and ADGJ increases by a constant difference of +3: B (2) → E (5) → H (8) → K (11) P (16) → S (19) → V (22) → Y (25) A (1) → D (4) → G (7) → J (10)

Among the options, only MPSV follows this same +3 consecutive difference pattern: M (13) → P (16) → S (19) → V (22)

Explanation

In JKL, all three letters are consecutive in the English alphabetical order (J → K → L) without any skipped letters between them. This differs from the other letter groups, which contain non-consecutive letters with gaps in their alphabetical sequence.

Explanation

Duckling is the young one of a bird, specifically a duck, making it an avian offspring. This distinguishes it because the other terms denote the young ones of mammalian species.

Explanation

Vishakhapatnam is the odd one out because Chennai, Mumbai, and Delhi are all capital cities (Chennai is the capital of Tamil Nadu, Mumbai is the capital of Maharashtra, and Delhi is the national capital of India), whereas Vishakhapatnam is not a capital city. Additionally, Chennai, Mumbai, and Delhi are major Tier-I metropolitan cities and represent three of the main vertices of the Golden Quadrilateral highway network, whereas Vishakhapatnam is a Tier-II city.

Explanation

PLN has alphabetical positions of P = 16, L = 12, and N = 14. The pattern of differences between consecutive letters in this term is -4 and +2. This differs from the pattern of -3 and +2 followed by the rest of the groups.

Explanation

To arrange the words in alphabetical order as they appear in a dictionary, we examine the starting letter of each word. The letters are T in Tutor, U in Umbrella, V in Verify, W in Wonder, and X in Xylophone. Following the standard alphabetical sequence of T, U, V, W, and X, the correct order of the words is Tutor, Umbrella, Verify, Wonder, and Xylophone. This translates directly to the sequence of 1, 5, 3, 2, and 4.

Explanation

All the given words begin with the prefix Imm. Comparing the fourth letter of each word determines the alphabetical sequence.

Immerse has the fourth letter e, which comes first.

Immigrate has the fourth letter i, which comes next.

Immolate and Immortal both have the fourth letter o. Comparing their fifth letters, l in Immolate comes before r in Immortal, which puts Immolate before Immortal.

Immunity has the fourth letter u, which comes last in this group.

Comparing these letters gives the correct dictionary order as 3, 1, 4, 5, 2.

Explanation

The number 31 is a prime number, whereas the other numbers are composite numbers. Additionally, 9, 24, and 48 are all divisible by 3, while 31 is not a multiple of 3.

Explanation

The sequence follows an arithmetic progression with a constant difference of 3 between consecutive terms. Starting from 6, the subsequent terms are calculated as:

6 + 3 = 9 9 + 3 = 12 12 + 3 = 15 15 + 3 = 18 18 + 3 = 21

The term 22 does not fit this pattern as it should be 21. Furthermore, 22 is not divisible by 3, whereas the preceding numbers in the pattern are multiples of 3.

Explanation

The given mathematical operations use the minus sign to denote addition.

By applying this logic: 8 + 8 = 16 7 + 7 = 14 6 + 6 = 12

Following the same pattern: 5 + 5 = 10

Explanation

The numbers in each column follow a specific pattern where the product of the first two numbers in a column added to the third number results in the fourth number.

In the first column: (5 × 6) + 4 = 34

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

In the third column: (3 × 8) + x = 30 24 + x = 30 x = 6

Explanation

The given sequence has two parts: alphabetical letters and numerical values.

For the letters, the positions in the English alphabet are: B is the 2nd letter. G is the 7th letter. L is the 12th letter. Q is the 17th letter. The position increases by 5 at each step: 2, 7, 12, 17. The next position is 17 + 5 = 22, which corresponds to the letter V.

For the numbers, the sequence is 7, 11, 15, 19. The numbers increase by 4 at each step: 7, 11, 15, 19. The next number is 19 + 4 = 23.

Combining both parts gives V-23.

Explanation

The given sequence follows an arithmetic progression with a constant common difference of 130 between consecutive terms.

169 - 39 = 130 299 - 169 = 130

To find the missing number, add 130 to the third term: 299 + 130 = 429

Explanation

The pattern in 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 Next term = 185 + 14 × 3 = 185 + 42 = 227

Explanation

The pattern is based on finding the product of the two numbers and then taking the unit digit of that product.

For 5 × 7, the product is 35, and the unit digit is 5.

For 12 × 3, the product is 36, and the unit digit is 6.

For 8 × 9, the product is 72, and the unit digit is 2.

Following the same logic for 6 × 8, the product is 48, and the unit digit is 8.

Explanation

Based on the rules of the given mathematical operations, the symbols are substituted as follows: stands for ÷ ÷ stands for +

• stands for × × stands for -

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

Gives the modified expression: 175 ÷ 25 + 5 × 20 - 3 × 10

Applying the BODMAS rule, perform division first: 175 ÷ 25 = 7

This simplifies the expression to: 7 + 5 × 20 - 3 × 10

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

This simplifies the expression to: 7 + 100 - 30

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

Explanation

The pattern in the given logic involves rearranging the digits of the two numbers. Let the first two-digit number be represented as AB, where A and B are individual digits, and the second two-digit number as CD, where C and D are individual digits. The resulting four-digit number is formed by arranging these digits in the order ADCB.

For the first equation, 32 + 45 = 3542: A = 3, B = 2, C = 4, and D = 5. Arranging them as ADCB gives 3542.

For the second equation, 47 + 72 = 4277: A = 4, B = 7, C = 7, and D = 2. Arranging them as ADCB gives 4277.

Applying the same pattern to 86 + 12: A = 8, B = 6, C = 1, and D = 2. Arranging them in the ADCB format yields 8216.

Explanation

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

Using the Pythagorean theorem:

Distance = √(Base² + Height²) Distance = √(3² + 4²) Distance = √(9 + 16) Distance = √25 Distance = 5 km

Explanation

Let the starting point be represented as the origin (0, 0) on a coordinate plane.

First, Ganesh walks 20 m towards the East, reaching the point (20, 0).

Next, he walks 10 m towards the South, reaching the point (20, -10).

Then, he walks 35 m towards the West, which brings him to: (20 - 35, -10) = (-15, -10)

Finally, he walks 5 m towards the East, reaching the final position at: (-15 + 5, -10) = (-10, -10)

This final position is 10 m South and 10 m West of his starting point. By applying Pythagoras' theorem, the straight-line distance between the starting point and the final point is: √((-10)² + (-10)²) = √(100 + 100) = √200 = 10√2 m

This straight distance of 10√2 m is represented by 10 m.

Explanation

The given statement states that many editors have done more harm than good by distorting the truth.

Conclusion I does not follow because the statement specifically mentions "many editors", which refers to a subset of editors. It cannot be generalized to mean that all editors distort the truth.

Conclusion II does not follow because the statement only compares the harm and good caused by the actions of these specific editors. It does not establish a general or universal principle that distorting the truth itself is more harmful than other acts.

Explanation

Conclusion II states "Some teachers are spiritual." This is a direct reiteration of Statement 3, which explicitly states "Some teachers are spiritual." In syllogism, any statement given as a premise is accepted as absolutely true, and therefore a conclusion that directly repeats a given statement is logically valid and definitely follows.

Explanation

None of the given assumptions can be logically assumed from the statement.

First, the advertisement uses the comparative term better sound quality, which clearly indicates that other television brands exist in the market to be compared against, meaning 'X' TV is not the only TV available.

Second, the statement is completely silent regarding the price, cost, or affordability of the television, so there is no basis to assume that 'X' TV is the costliest.

Third, any advertisement is created and paid for under the fundamental assumption that the target audience will pay attention to it and be influenced by it. If advertisers believed that people generally ignore such advertisements, they would not advertise in the first place.

Therefore, all three assumptions fail to be implicit under the given statement.

Explanation

To find the word that appears third in the dictionary, we arrange the words in alphabetical order by comparing their letters from left to right. All the given words start with the prefix App. Comparing the fourth letter of each word, the letter l in Apply comes before the letter r in the other words, making Apply the first word. Among the remaining three words starting with Appr, the fifth letters are e in Appreciate and Apprehend, and o in Appropriate. Since e comes before o, Appropriate is the fourth word. Comparing the sixth letters of Appreciate and Apprehend, c comes before h. Therefore, Appreciate is the second word, which positions Apprehend as the third word in alphabetical order.

Explanation

Badminton is classified as the odd one out because it is played using a shuttlecock, whereas all the other games are played using a ball.

Explanation

The number 9 is a composite number because it has divisors other than 1 and itself, specifically 3. The other numbers are prime numbers, which have exactly two distinct positive divisors: 1 and the number itself. Additionally, 9 is a perfect square (3²), unlike the others.

Explanation

September has 30 days, unlike the other specified months which all contain 31 days.

Explanation

The relationship in the given analogy is tool and the object on which it acts. 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.

Explanation

Spinach is classified under the category of greens, which refers to leafy green vegetables. Similarly, peas are classified under the category of legumes, which are plants from the Fabaceae family.

Explanation

The sequence follows a pattern where each term increases by a constant difference of 222:

234 + 222 = 456 456 + 222 = 678

Additionally, each term in the series is composed of three consecutive ascending digits: 234 contains the digits 2, 3, 4 456 contains the digits 4, 5, 6 678 contains the digits 6, 7, 8

Explanation

The relation in the given analogy is based on squaring the second number to obtain the first number. In the first pair, 7² is equal to 49. Applying the same logic to the second pair, 17² is equal to 289.

Explanation

The system rearranges the digits of the multiplication expression. For an expression of the form a × b × c, the digits are rearranged in the reverse order of their appearance to form the number cba.

For the first equation, 5 × 9 × 7 rearranges to 795. For the second equation, 2 × 7 × 4 rearranges to 472. Following the same pattern for the third equation, 9 × 7 × 6 rearranges to 679.

Explanation

The analogy is based on antonyms representing the beginning and the end. A prologue is the introductory section of a literary work, while an epilogue is the concluding section at the end. Similarly, dawn represents the beginning of daylight, and dusk represents the end of daylight.

Explanation

A histogram is a graphical representation of data using bars, which makes it a specific type or variation of a bar chart. Similarly, calligraphy is the visual art of writing, which is a stylized or artistic form of handwriting.

Explanation

The logic of the analogy is based on a constant difference of +3 between the alphabetical positions of consecutive letters in each group.

For BEHK: B (2) + 3 = E (5) E (5) + 3 = H (8) H (8) + 3 = K (11)

For PSVY: P (16) + 3 = S (19) S (19) + 3 = V (22) V (22) + 3 = Y (25)

For ADGJ: A (1) + 3 = D (4) D (4) + 3 = G (7) G (7) + 3 = J (10)

Following this pattern of a constant difference of +3, the fourth term is MPSV: M (13) + 3 = P (16) P (16) + 3 = S (19) S (19) + 3 = V (22)

Explanation

The relationship between the first two terms is based on the alphabetical positions of their letters:

The first letter of the first term is shifted backward by 1 position: S - 1 = R. The second letter of the first term is shifted forward by 1 position: H + 1 = I. The third letter of the first term is shifted forward by 1 position: I + 1 = J.

Applying this same pattern (-1, +1, +1) to the third term QJK:

The first letter Q shifted backward by 1 position is P. The second letter J shifted forward by 1 position is K. The third letter K shifted forward by 1 position is L.

This yields the term PKL.