SSC CHSL Tier 1 2016 General Intelligence & Reasoning Questions with Solutions

Explanation

In the letter pair SW, the alphabetical positions of the letters are S = 19 and W = 23, meaning the letters are in ascending order. In all other pairs, the letters are in descending order with a difference of 4 between their alphabetical positions, such as V = 22 and R = 18, L = 12 and H = 8, and F = 6 and B = 2.

Explanation

The sum of the digits of the number 785 is 7 + 8 + 5 = 20. For each of the other three numbers, the sum of their digits is equal to 17, with 8 + 6 + 3 = 17, 7 + 9 + 1 = 17, and 6 + 4 + 7 = 17.

Explanation

The first two digits of the numbers are obtained by multiplying the last two digits. In the number 2363, the product of the last two digits is 6 × 3 = 18, which does not equal the first two digits (23).

Explanation

The given series lists the four earliest river valley civilizations of the ancient world, commonly referred to as the cradles of civilization. These four primary civilizations emerged independently along major river systems: the Mesopotamian civilization along the Tigris and Euphrates rivers, the Egyptian civilization along the Nile river, the Indus Valley civilization along the Indus river, and the Chinese civilization along the Yellow river.

Explanation

The series follows a specific pattern of alphabetical transitions both within each term and between consecutive terms.

Within each term, the first letter is increased by 1 to obtain the second letter, and the second letter is increased by 2 to obtain the third letter: T (20) + 1 = U (21), and U (21) + 2 = W (23) Z (26) + 1 = A (1), and A (1) + 2 = C (3) F (6) + 1 = G (7), and G (7) + 2 = I (9) L (12) + 1 = M (13), and M (13) + 2 = O (15)

Between consecutive terms, the first letter of the next term is obtained by adding 3 to the alphabetical position of the last letter of the preceding term: W (23) + 3 = Z (26) C (3) + 3 = F (6) I (9) + 3 = L (12)

Applying this rule to find the first letter of the missing term: O (15) + 3 = R (18)

Applying the internal term rule (+1, +2) starting from R: R (18) + 1 = S (19) S (19) + 2 = U (21)

This gives the missing term as RSU.

Explanation

The series progresses by adding increasing values to the alphabetical positions of the letters in each term. Converting the letters to their numerical positions in the alphabet (A = 1, B = 2, ..., Z = 26):

The first letters of each pair are: N (14) Q (17), which is 14 + 3 U (21), which is 17 + 4 Z (26), which is 21 + 5 Continuing this pattern, the next first letter is obtained by adding 6 to Z (26), which gives 32. Since there are 26 letters in the alphabet, 32 wraps around to 6, which represents the letter F.

The second letters of each pair are: O (15) R (18), which is 15 + 3 V (22), which is 18 + 4 A (27), which is 22 + 5 Continuing this pattern, the next second letter is obtained by adding 6 to A (27), which gives 33. This wraps around to 7, which represents the letter G.

Explanation

The differences between consecutive terms of the given series form an arithmetic progression of consecutive even integers:

13 - 7 = 6 21 - 13 = 8 31 - 21 = 10 43 - 31 = 12 57 - 43 = 14

Following this pattern of increasing the difference by 2 each time, the next difference must be 16. Adding 16 to the last term:

57 + 16 = 73

Explanation

By using the transitivity of set inclusion, the relationship between the categories is established. The first statement states that the entire class of fans is contained within the class of cups. The second statement establishes that the entire class of cups is contained within the class of pillows.

Because the set of fans is a subset of cups, and the set of cups is a subset of pillows, it follows mathematically that the set of fans is a subset of pillows. This directly validates Conclusion I, which states that all fans are pillows.

Explanation

If 5th January 2011 is assumed to be a Thursday, then 1st January 2011 is 4 days earlier, which makes it a Sunday.

The number of odd days between 1st January 2011 and 1st January 2013 is calculated based on the intervening years: For the year 2011, which is a non-leap year of 365 days, there is 1 odd day. For the year 2012, which is a leap year of 366 days, there are 2 odd days.

The total number of odd days between 1st January 2011 and 1st January 2013 is 1 + 2 = 3 odd days.

Adding 3 days to Sunday results in Wednesday.

Explanation

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

Comparing the first letter of each word, all four words begin with N.

Comparing the second letter, Next, Neutral, and Neither have the letter e, while Noisy has the letter o. Since e precedes o in the alphabet, Noisy must appear last in the sequence.

Comparing the third letter of the three remaining words Next, Neutral, and Neither, the third letters are x, u, and i respectively. Arranging these letters alphabetically gives i first, then u, and finally x.

This arrangement places Neither (iv) first, followed by Neutral (iii), then Next (i), and finally Noisy (ii).

Explanation

The code language follows an alternating pattern of adding 1 and subtracting 1 to the positional values of consecutive letters, starting with addition.

Applying this rule to TERMITE: T + 1 = U E - 1 = D R + 1 = S M - 1 = L I + 1 = J T - 1 = S E + 1 = F

Applying the same logic to MINISTER: M + 1 = N I - 1 = H N + 1 = O I - 1 = H S + 1 = T T - 1 = S E + 1 = F R - 1 = Q

Explanation

Convert the alphabet letters in each column to their respective positions in the English alphabet, where A = 1, B = 2, and so on.

In the first column: T = 20 D = 4 The formula is 2 × (T + D) = 2 × (20 + 4) = 48.

In the second column: R = 18 M = 13 The formula is 2 × (R + M) = 2 × (18 + 13) = 62.

In the third column: H = 8 W = 23 The formula is 2 × (H + W) = 2 × (8 + 23) = 2 × 31 = 62.

Explanation

Applying the BODMAS rule, we substitute the letters with their respective mathematical operators: B denotes ÷ (divided by) C denotes × (multiplied by) A denotes + (added to) D denotes - (subtracted from)

Substituting these into the given expression: 87 B 3 C 4 A 4 D 50 becomes: 87 ÷ 3 × 4 + 4 - 50

Performing the operations in order: First, perform division: 87 ÷ 3 = 29

Next, perform multiplication: 29 × 4 = 116

Next, perform addition: 116 + 4 = 120

Finally, perform subtraction: 120 - 50 = 70

Explanation

By sequentially placing the letters of the set CQMCQ in the gaps of the series M_Q_C_M_Q_CM, we get:

M [C] Q [Q] C [M] M [C] Q [Q] C M

This results in the complete series: MCQQCMMCQQCM

Dividing this completed series into groups of six or three letters reveals a consistent, repeating pattern:

Groups of six: MCQQCM | MCQQCM (where the pattern MCQQCM repeats itself).

Groups of three: MCQ | QCM | MCQ | QCM (where MCQ and its reverse QCM alternate).

This makes CQMCQ the correct set of letters to complete the series.

Explanation

The initial facing direction is South.

An anticlockwise turn of 135 degrees from South points towards the North-East direction.

From North-East, any turn of 180 degrees (clockwise or anticlockwise) points directly in the opposite direction. The direction opposite to North-East is South-West.

Explanation

The code for each letter of the word WATER is determined by representing its row number first followed by its column number.

For the letter W, the row is 2 and the column is 2, which gives 22 in Matrix-I. For the letter A, the row is 9 and the column is 9, which gives 99 in Matrix-II. For the letter T, the row is 4 and the column is 0, which gives 40 in Matrix-I. For the letter E, the row is 9 and the column is 5, which gives 95 in Matrix-II. For the letter R, the row is 3 and the column is 0, which gives 30 in Matrix-I.

These representations correspond directly to the sequence 22, 99, 40, 95, 30.

Explanation

Rajesh is the only son of Rajan. Since Ankita is the daughter-in-law of Rajan, she must be married to Rajesh, meaning Rajesh and Ankita are husband and wife. Preeti is the daughter of Rajesh, and Amit is the son of Ankita. Because Rajesh and Ankita are married, their children Preeti and Amit are siblings. Therefore, Preeti is the sister of Amit.

Explanation

The relationship between the first two words is synonymy, as antique means old. Following the same logic, fragile is a synonym for weak, as both words describe something that is delicate, easily broken, or lacking in physical strength.

Explanation

The relation between the first two terms is based on shifting each letter forward by 3 positions in alphabetical order, wrapping around from Z to A.

The alphabetical positions of X and Y are 24 and 25 respectively. Adding 3 to each position gives: 24 + 3 = 27, which wraps around to 1 (A) 25 + 3 = 28, which wraps around to 2 (B)

Applying this same logic to the letters L (12th letter) and M (13th letter): 12 + 3 = 15 (O) 13 + 3 = 16 (P)

This yields OP as the corresponding term.

Explanation

The relationship between the first pair of letter groups is based on adding constant positional values to each letter in the English alphabet.

C is the 3rd letter and G is the 7th letter, showing an increase of 4 positions. E is the 5th letter and K is the 11th letter, showing an increase of 6 positions.

Applying this same pattern to MQ: M is the 13th letter. Adding 4 positions yields 17, which corresponds to Q. Q is the 17th letter. Adding 6 positions yields 23, which corresponds to W.

This gives the combination QW.

Explanation

The relationship between the numbers in the first pair is division by 3.

36 ÷ 3 = 12

Applying the same division logic to the second pair:

72 ÷ 3 = 24

Explanation

Cauliflower is a vegetable, specifically an edible flower head or inflorescence, whereas the other items are botanically classified as fruits.

Explanation

In XYB, the alphabetical positions of the letters are X = 24, Y = 25, and B = 2. The difference between X and Y is +1 (25 - 24 = 1), whereas the difference between Y and B is +3 (28 - 25 = 3, where B is treated as 28). This group follows a +1, +3 letter-spacing pattern, which differs from the +1, +2 spacing pattern shared by the other groups.

Explanation

The number 343 is a perfect cube (7³), whereas all the other numbers in the given alternatives are perfect squares.

Explanation

The sum of the digits of 672 is 15 (6 + 7 + 2 = 15), whereas the sum of the digits of the other numbers is 13 (3 + 7 + 3 = 13, 2 + 6 + 5 = 13, and 4 + 9 + 0 = 13).

Explanation

The series consists of chemical elements ordered sequentially by their atomic numbers. Hydrogen has an atomic number of 1, Helium has 2, and Lithium has 3. The next element in this sequence must have an atomic number of 4, which is Beryllium.

Explanation

Each term is obtained by shifting the corresponding letters of the previous term forward by 6 positions in alphabetical order.

First letter: F (+6) → L (+6) → R (+6) → X Second letter: I (+6) → O (+6) → U (+6) → A (after Z, the alphabetical positions wrap around) Third letter: L (+6) → R (+6) → X (+6) → D (after Z, the alphabetical positions wrap around)

Applying this pattern, the next term in the series is XAD.

Explanation

The series follows a pattern where the letters progress systematically.

For the first letter of each term, the alphabetical position increases by 2: F (6) + 2 = H (8) H (8) + 2 = J (10) J (10) + 2 = L (12)

For the second letter of each term, the alphabetical position decreases by 2: U (21) - 2 = S (19) S (19) - 2 = Q (17) Q (17) - 2 = O (15)

Combining these positions gives the letters L and O. Alternatively, each pair consists of letters that are opposite to each other in the alphabetical order, where the sum of their numerical positions is always 27, which holds true for L (12) and O (15).

Explanation

The series is formed by pairs of numbers where each number is followed by its square.

The first pair consists of the number 3 followed by its square, which is 3² = 9. The second pair consists of the number 4 followed by its square, which is 4² = 16. The third pair begins with the number 5, so the missing term must be its square, which is 5² = 25.

Explanation

The first statement establishes that there is an intersection between the group of men and the group of educated persons, meaning some men are educated. The second statement asserts that all educated persons prefer small families. Combining these premises, the subset of men who are educated must also fall under the category of people who prefer small families. This validates the conclusion that some men prefer small families.

Explanation

The given height relationships can be represented as follows: A > B C > B B > D

Since B is taller than D, and both A and C are taller than B, D must be shorter than A, B, and C. Therefore, D is the shortest.

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 four words begin with the prefix rec.

Comparing the fourth letters of each word: Receptive has e. Recognize has o. Record has o. Recur has u.

Since e comes before o and u in the alphabetical order, Receptive (ii) is the first word in the sequence.

Next, comparing the fifth letters of Recognize and Record, which both have o as their fourth letter: Recognize has g. Record has r.

Since g comes before r, Recognize (i) precedes Record (iii).

Finally, Recur (iv) has u as its fourth letter, which comes after e and o, placing it last.

This gives the complete dictionary order as Receptive (ii), Recognize (i), Record (iii), and Recur (iv), yielding the sequence ii, i, iii, iv.

Explanation

Each letter of the word BROTHER is shifted by one position forward in the alphabetical order to obtain the code CSPUIFS.

B + 1 = C R + 1 = S O + 1 = P T + 1 = U H + 1 = I E + 1 = F R + 1 = S

By applying the same +1 shift pattern to the word SISTER:

S + 1 = T I + 1 = J S + 1 = T T + 1 = U E + 1 = F R + 1 = S

This results in the coded word TJTUFS.

Explanation

In the given number matrix, the pattern is based on the sum of the elements in each row.

For the first row, the sum of the numbers is: 15 + 28 + 7 = 50

For the third row, the sum of the numbers is: 20 + 16 + 14 = 50

Following this constant row sum pattern, the sum of the numbers in the second row must also be 50.

Using the missing variable x: 23 + x + 17 = 50 40 + x = 50 x = 10

Explanation

According to the given definition, substitute the letters with their respective mathematical operators: V denotes minus (-) M denotes plus (+) L denotes division (÷) S denotes multiplication (×)

Substituting these operators into the given expression: 11 - 9 + 88 ÷ 11 × 9

Applying the BODMAS rule: First, perform the division operation: 88 ÷ 11 = 8 The expression becomes: 11 - 9 + 8 × 9

Next, perform the multiplication operation: 8 × 9 = 72 The expression becomes: 11 - 9 + 72

Finally, perform the addition and subtraction operations: 11 - 9 + 72 = 2 + 72 = 74

Explanation

The given 12-letter series can be divided into three groups of four letters each.

The pattern consists of alternating forward and backward alphabetical sequences of the letters b, c, d, and e: First group: b c d e (forward sequence) Second group: e d c b (backward sequence) Third group: b c d e (forward sequence)

When the letters from the correct option (c, e, c, b, d) are sequentially placed in the gaps of b _ d _ e d _ b _ c _ e, it completes the series as: b c d e e d c b b c d e

This perfectly satisfies the alternating forward-backward pattern.

Explanation

Direction vectors are exactly opposite when the point of reference is reversed. The opposite of south is north, and the opposite of east is west. Therefore, the opposite direction of south-east is north-west. Since A is to the south-east of B, looking from A towards B points in the diametrically opposite direction, which is north-west.

Explanation

According to the rule, a letter is represented first by its row number and then by its column number.

The letter C is located at Row 3, Column 2 of Matrix-I, which corresponds to the number 32.

The letter L is located at Row 6, Column 7 of Matrix-II, which corresponds to the number 67.

The letter A is located at Row 1, Column 2 of Matrix-I, which corresponds to the number 12.

The first S is located at Row 8, Column 7 of Matrix-II, which corresponds to the number 87.

The second S is located at Row 9, Column 8 of Matrix-II, which corresponds to the number 98.

Combining these representations gives the sequence 32, 67, 12, 87, 98.

Explanation

Let Ankit's only brother be represented as B. The statement says B is the brother-in-law of Shweta. For B to be Shweta's brother-in-law, B must be the brother of Shweta's husband. Since B has only one brother, who is Ankit, Shweta's husband has to be Ankit. Therefore, Shweta is the wife of Ankit.

Explanation

The relationship in the given analogy is between an organization or institution and its chief executive or administrative head. A Station Master is the person in charge of managing and running a Railway Station. Similarly, a Principal is the administrative head responsible for overseeing and managing a School.

Explanation

Each letter in the word GROUPS is shifted forward by two positions in the English alphabetical order to obtain the corresponding letter in the word ITQWRU.

Specifically, the letters of GROUPS shift as: G + 2 = I R + 2 = T O + 2 = Q U + 2 = W P + 2 = R S + 2 = U

Applying this same shift of plus two positions to each letter of the word SECOND gives: S + 2 = U E + 2 = G C + 2 = E O + 2 = Q N + 2 = P D + 2 = F

This yields the sequence UGEQPF.

Explanation

The pattern followed here is shifting each letter of the word forward by one position in alphabetical order.

For the word LETTER: L shifts to M E shifts to F T shifts to U T shifts to U E shifts to F R shifts to S Thus, LETTER becomes MFUUFS.

Using the same pattern for the word AHEAD: A shifts to B H shifts to I E shifts to F A shifts to B D shifts to E This yields BIFBE.

Explanation

The relationship in the first pair is established by multiplying the first number by 4 to get the second number.

12 × 4 = 48

Applying the same logic to the second pair:

104 × 4 = 416

Explanation

Dribbling is a technique in sports like football, basketball, and hockey where a player moves the ball or puck past opponents with short, controlled kicks, bounces, or taps. The other listed terms are exclusively associated with the sport of cricket.

Explanation

In BCDWXY, the last three letters (W, X, Y) are the alphabetical opposites of the first three letters (B, C, D) but in reverse order: D (4th letter) → W (23rd letter, which is 4th from the end) C (3rd letter) → X (24th letter, which is 3rd from the end) B (2nd letter) → Y (25th letter, which is 2nd from the end)

In all other options, the last three letters are the alphabetical opposites of the first three letters in direct corresponding order. This reverse matching pattern makes BCDWXY the odd one out.

Explanation

The numbers in the given set follow a pattern where the sum of the cubes of the first two digits equals the three-digit number formed by the remaining three digits:

6³ + 7³ = 216 + 343 = 559 4³ + 5³ = 64 + 125 = 189 5³ + 6³ = 125 + 216 = 341

The number 54321 is the odd one out because it does not follow this pattern: 5³ + 4³ = 125 + 64 = 189 (which is not equal to 321)

Explanation

The number 6783 is the odd one out because it violates the pattern where doubling the product of the first two digits and adding 1 equals the last two digits. For this number, the calculation yields ((6 × 7) × 2) + 1 = 85, whereas the last two digits are 83.

Explanation

The given series lists the newly created states of India in the chronological order of their formation. Chhattisgarh was carved out of Madhya Pradesh on November 1, 2000. Uttarakhand was carved out of Uttar Pradesh on November 9, 2000. Jharkhand was carved out of Bihar on November 15, 2000. Following these, Telangana was the next state to be formed in India, carved out of Andhra Pradesh on June 2, 2014.

Explanation

The series is formed by incrementing the alphabetical positions of the letters by a constant value.

For the first letter of each term: F is the 6th letter. K is the 11th letter (6 + 5 = 11). P is the 16th letter (11 + 5 = 16). The next first letter is obtained by adding 5 to the position of P, which gives the 21st letter, U (16 + 5 = 21).

For the second letter of each term: I is the 9th letter. M is the 13th letter (9 + 4 = 13). Q is the 17th letter (13 + 4 = 17). The next second letter is obtained by adding 4 to the position of Q, which gives the 21st letter, U (17 + 4 = 21).

Combining the two letters, we get UU.

Explanation

The series is formed by adding 8 to the alphabetical position of each letter in the preceding term.

For the first letter of each term: B (2) + 8 = J (10) J (10) + 8 = R (18) R (18) + 8 = Z (26)

For the second letter of each term: C (3) + 8 = K (11) K (11) + 8 = S (19) S (19) + 8 = A (27, which wraps around to 1 in the 26-letter alphabet)

Applying this pattern, the next term in the series is ZA.