SSC CHSL Tier 1 2023 General Intelligence & Reasoning Questions with Solutions

Explanation

The coding pattern is based on the sum of the standard positional values of the letters in the English alphabet, where A = 1, B = 2, ..., Z = 26.

For the word QUEZAL: Q = 17, U = 21, E = 5, Z = 26, A = 1, L = 12 Sum = 17 + 21 + 5 + 26 + 1 + 12 = 82

For the word LUCKY: L = 12, U = 21, C = 3, K = 11, Y = 25 Sum = 12 + 21 + 3 + 11 + 25 = 72

Applying the same logic to the word ADVERSE: A = 1, D = 4, V = 22, E = 5, R = 18, S = 19, E = 5 Sum = 1 + 4 + 22 + 5 + 18 + 19 + 5 = 74

Explanation

The relationship between the letter groups is based on a constant shift of +8 in the alphabetical position of each letter.

For GIEK to OQMS: G (7) + 8 = O (15) I (9) + 8 = Q (17) E (5) + 8 = M (13) K (11) + 8 = S (19)

Applying the same pattern of adding 8 to each letter of EGCI: E (5) + 8 = M (13) G (7) + 8 = O (15) C (3) + 8 = K (11) I (9) + 8 = Q (17)

This yields the letter group MOKQ.

Explanation

In the given number pairs, the relationship between the first number (x) and the second number (y) is represented by the formula:

y = x × (x - 1)

For the pair 6:36, applying this formula gives:

6 × (6 - 1) = 6 × 5 = 30

Since the second number in this pair is 36 instead of 30, it does not follow the pattern established by the other pairs, where the second number is the product of the first number and the number preceding it.

Explanation

In the standard alphabetical sequence, the letters of the matching group follow a pattern where the position increases by 3 from the first letter to the second, and by 2 from the second letter to the third. For UWX, the alphabetical positions are U (21), W (23), and X (24). The difference from U to W is +2, and the difference from W to X is +1. Since it follows a (+2, +1) pattern instead of the (+3, +2) pattern, it does not belong to the group.

Explanation

Let us decode the expression F × G - H + I + J step-by-step to find the relation between F and J:

I + J means I is the sister of J. H + I means H is the sister of I. This implies H, I, and J are siblings.

G - H means G is the husband of H. Since G is the husband, H is the wife of G. F × G means F is the son of G.

Since H is the wife of G and F is the son of G, H is the mother of F. Since H is the mother of F and J is a sibling of H, J is the maternal uncle (mother's brother) of F.

Explanation

To find the day of the week on 19 September 1983 starting from 9 July 1978, we calculate the total number of odd days between the two dates.

First, calculate the odd days from 9 July 1978 to 9 July 1983: Number of years = 1983 - 1978 = 5 years. Within this 5-year period, there is 1 leap year (1980) and 4 ordinary years (1979, 1981, 1982, 1983). Odd days from years = (4 × 1) + (1 × 2) = 6 odd days.

Next, calculate the odd days from 9 July 1983 to 19 September 1983: Remaining days in July = 31 - 9 = 22 days (22 mod 7 = 1 odd day) Days in August = 31 days (31 mod 7 = 3 odd days) Days in September = 19 days (19 mod 7 = 5 odd days) Total odd days from months = 1 + 3 + 5 = 9 odd days, which simplifies to 2 odd days (9 mod 7 = 2).

Total odd days = 6 (from years) + 2 (from months) = 8 odd days. Simplifying this: 8 mod 7 = 1 odd day.

Adding 1 odd day to Sunday results in Monday.

Explanation

P is the mother of N and X, which makes X the daughter of P. X is married to M, and they have a son named K, who is the brother of their daughter S. Since K is the son of X, and X is the daughter of P, K is the daughter's son of P.

Explanation

The given series can be divided into three interleaved sub-series by taking every third term:

First sub-series (1st, 4th, 7th terms): 2, 14, 10 Second sub-series (2nd, 5th, 8th terms): 3, 7, 3 Third sub-series (3rd, 6th, 9th terms): 3, 71, X

Analyzing the third sub-series (3, 71, X), we find the first-order differences between consecutive terms: 71 - 3 = 68 X - 71

The second-order difference (the difference between consecutive first-order differences) is constant at 8: (X - 71) - 68 = 8 X - 139 = 8 X = 147

Explanation

Correct Answer: D

The given sequence is an alternating series consisting of two overlapping sub-series.

The first sub-series, which occupies the odd positions (1st, 3rd, 5th, and 7th terms), is: 136, 137, 138, ... This series increases by 1 with each subsequent term.

The second sub-series, which occupies the even positions (2nd, 4th, and 6th terms), is: 135, 136, 137, ... This series also increases by 1 with each subsequent term.

The missing number is the 7th term, which corresponds to the next term in the first sub-series. Therefore, the next term is calculated as: 138 + 1 = 139

Another way to see this pattern is by alternating the mathematical operations: 136 - 1 = 135 135 + 2 = 137 137 - 1 = 136 136 + 2 = 138 138 - 1 = 137 Following this alternating subtract-1 and add-2 pattern, the next operation is to add 2: 137 + 2 = 139

Explanation

The relationship between the numbers in the given pairs follows the mathematical formula where the second number is obtained by multiplying the first number by 6 and then adding 6.

Second number = (First number × 6) + 6

Applying this pattern to the given sets: For (15, 96): (15 × 6) + 6 = 90 + 6 = 96

For (35, 216): (35 × 6) + 6 = 210 + 6 = 216

Applying the same pattern to the pair (29, 180): (29 × 6) + 6 = 174 + 6 = 180

Explanation

To determine how many letters remain in the same position, compare the original word with its alphabetically sorted version.

Original word: Position 1: A Position 2: C Position 3: Q Position 4: U Position 5: I Position 6: R Position 7: E

Alphabetical arrangement: Position 1: A Position 2: C Position 3: E Position 4: I Position 5: Q Position 6: R Position 7: U

Comparing the two sequences, the letters at Position 1 (A), Position 2 (C), and Position 6 (R) remain in the exact same positions. Thus, the positions of three letters remain unchanged.

Explanation

By placing the letters B, B, D, and D sequentially in the blanks of the series, we get:

A B C D B C D A C D A B D A B C

Dividing this 16-letter series into four equal groups of four letters each, we obtain:

ABCD, BCDA, CDAB, DABC

This reveals a cyclic pattern where each group is formed by moving the first letter of the preceding group to the very end. This consistent shifting completes the logical progression of the series.

Explanation

For any given set of numbers (a, b, c), the mathematical relationship between the numbers is defined by the formula: b = a² - c

Applying this formula to the first given set (11, 87, 34): 11² - 34 = 121 - 34 = 87

Applying this formula to the second given set (6, 28, 8): 6² - 8 = 36 - 8 = 28

Applying the same formula to the set (12, 81, 63): 12² - 63 = 144 - 63 = 81

Explanation

Begin and Start are synonyms because they share the same meaning of initiating an activity or process. Similarly, Ban and Forbid are synonyms that both represent the act of prohibiting or declaring something as disallowed. This establishes a parallel synonym relationship between the two word-pairs.

Explanation

Correct Answer: D

The number of odd days between 11 August 2004 and 11 February 2006 is calculated by finding the total number of days between these two dates.

From 11 August 2004 to 11 August 2005, there are 365 days because 2005 is a non-leap year. This is equivalent to 52 weeks and 1 odd day.

From 11 August 2005 to 11 February 2006, the number of days in each month is: August: 20 days (31 - 11) September: 30 days October: 31 days November: 30 days December: 31 days January: 31 days February: 11 days

The total days in this period is 20 + 30 + 31 + 30 + 31 + 31 + 11 = 184 days. Dividing 184 by 7 gives 26 weeks and 2 odd days.

The total number of odd days between the two dates is 1 + 2 = 3 odd days.

Adding 3 days to Wednesday yields Saturday.

Explanation

The relation between the numbers follows the formula y = 3x + 3, where x is the first number and y is the second related number.

For the first pair, with x = 24: y = 3 × 24 + 3 = 72 + 3 = 75

For the second pair, with x = 36: y = 3 × 36 + 3 = 108 + 3 = 111

Applying the same formula for x = 43: y = 3 × 43 + 3 = 129 + 3 = 132

Explanation

The relationship between the numbers in each pair follows the pattern where the second number is obtained by subtracting 1 from the first number and then dividing the result by 4.

Pattern: Second number = (First number - 1) ÷ 4

Applying this pattern to the given pairs: First pair: (129 - 1) ÷ 4 = 128 ÷ 4 = 32 Second pair: (109 - 1) ÷ 4 = 108 ÷ 4 = 27

Applying the same pattern to the fifth number: (289 - 1) ÷ 4 = 288 ÷ 4 = 72

Explanation

The coding scheme follows an alternating pattern of adding 3 and 8 to the alphabetical positions of the letters.

Applying this alternating pattern to the letters of FROWZY: F (6) + 3 = 9 (I) R (18) + 8 = 26 (Z) O (15) + 3 = 18 (R) W (23) + 8 = 31, which wraps around to 5 (E) Z (26) + 3 = 29, which wraps around to 3 (C) Y (25) + 8 = 33, which wraps around to 7 (G)

Explanation

The relationship between the letter groups is based on a specific shift applied to each alphabetical position: +1 for the first letter, -1 for the second letter, +1 for the third letter, and +1 for the fourth letter.

Applying this logic to CMSU: C + 1 = D M - 1 = L S + 1 = T U + 1 = V

This yields DLTV.

Explanation

To solve the equation, the operators ÷ and × are interchanged, and the operators + and - are interchanged.

Applying these interchanges to the given expression: 13 ÷ 182 × 14 - 45 + 24

The expression becomes: 13 × 182 ÷ 14 + 45 - 24

Using the BODMAS rule, perform division first: 182 ÷ 14 = 13

This simplifies the expression to: 13 × 13 + 45 - 24

Next, perform multiplication: 13 × 13 = 169

This simplifies the expression to: 169 + 45 - 24

Next, perform addition: 169 + 45 = 214

Finally, perform subtraction: 214 - 24 = 190

Explanation

The relationship between the numbers in the set is defined by the formula:

Third number = (First number × Second number) + 2

Applying this formula to the set 6 - 18 - 110:

(6 × 18) + 2 = 108 + 2 = 110

Explanation

By comparing the letters in TRIM and MINT along with their respective codes:

The word TRIM contains the letters T, R, I, M and is coded as 6794. The word MINT contains the letters M, I, N, T and is coded as 3679.

The letters common to both TRIM and MINT are T, I, and M. Looking at their codes, the common digits are 6, 7, and 9. This means the letters T, I, and M correspond to the digits 6, 7, and 9 in some order.

The only remaining letter in TRIM is R, and the only remaining digit in its code 6794 is 4. Therefore, the code for R is 4.

Explanation

The difference between consecutive terms in the series follows a pattern of decreasing multiples of 3.

Subtracting the successive terms gives: 251 - 254 = -3 245 - 251 = -6 236 - 245 = -9 224 - 236 = -12

Following this sequence of decreasing multiples of 3, the next difference must be -15.

Applying this to the last term: 224 - 15 = 209

Explanation

In the alphabetical series where A = 1, B = 2, ..., Z = 26, the letter-cluster TRV has the positional values T = 20, R = 18, and V = 22. The relationship between the letters is T - 2 = R and R + 4 = V, giving a pattern of -2 and +4. This differs from the other three letter-clusters, which all follow a consistent pattern of -2 and +3 between consecutive letters.

Explanation

The given series is formed by writing the English alphabet in reverse order from Z to B, while omitting the letters at positions that are multiples of 5, which are Y (25th), T (20th), O (15th), J (10th), and E (5th).

This leaves the following sequence of letters: Z X W V U S R Q P N M L K I H G F D C B

Dividing this sequence into groups of four letters gives: Group 1: Z X W V (missing letter is X) Group 2: U S R Q (missing letter is Q) Group 3: P N M L (missing letter is P) Group 4: K I H G (missing letter is H) Group 5: F D C B (missing letter is D)

Sequentially placing these missing letters in the blanks completes the series.

Explanation

The relationship in the given pair Blood: Red is that of a noun and its inherent or characteristic physical property, as blood is characteristically red in color. Similarly, in the pair Stone: Hard, hardness is the defining physical property of a stone.

Explanation

The series is formed by alternately adding 3 and multiplying by 2.

8 + 3 = 11 11 × 2 = 22 22 + 3 = 25 25 × 2 = 50 50 + 3 = 53

Explanation

The statement "All oranges are bananas" combined with "All bananas are mangoes" implies that the entire set of oranges lies inside the set of bananas, which in turn lies entirely inside the set of mangoes. Since all oranges are mangoes, the intersection of mangoes and oranges is non-empty, which means some mangoes are oranges. This makes Conclusion (I) true.

The statement "Some apples are oranges" means there is an intersection between the set of apples and the set of oranges. Since "All oranges are bananas", the entire set of oranges is contained within the set of bananas. This guarantees that the intersecting part of apples and oranges also falls within the set of bananas, meaning there is a guaranteed intersection between bananas and apples, so some bananas are apples. This makes Conclusion (II) true.

Explanation

The given series can be divided into four groups of four letters each:

Group 1: A E I [O] These are the first four vowels of the English alphabet in consecutive order.

Group 2: I L [N] Q The alphabetical positions of these letters are: I (9) + 3 = L (12) L (12) + 2 = N (14) N (14) + 3 = Q (17) The pattern of difference between consecutive letters is +3, +2, +3.

Group 3: S [S] S S All four letters are identical, meaning the pattern of difference is +0, +0, +0.

Group 4: [B] Z X U The alphabetical positions of these letters are: B (28 or 2) - 2 = Z (26) Z (26) - 2 = X (24) X (24) - 3 = U (21) The pattern of difference between consecutive letters is -2, -2, -3.

Thus, placing the letters O, N, S, and B in the respective blanks completes the logical sequence.

Explanation

In the expression M + N + O × P - Q: O × P means O is the wife of P. N + O represents N is the father of O, which means N is the father of P's wife. M + N means M is the mother of N. Since N is the father of P's wife and M is the mother of N, M is the mother of P's wife's father, which is the wife's father's mother of P.

Explanation

Mahesh's grandfather's only son is Mahesh's father. The daughter of Mahesh's father is Mahesh's sister. Thus, the girl in the photo is Mahesh's sister.

Explanation

Applying the interchange of mathematical signs: '+' and '-' are interchanged (meaning '+' becomes '-' and '-' becomes '+') '×' and '÷' are interchanged (meaning '×' becomes '÷' and '÷' becomes '×')

The given equation is: 26 ÷ 6 + 24 × 3 - 6 = ?

After interchanging the signs, the expression becomes: 26 × 6 - 24 ÷ 3 + 6

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

Division: 24 ÷ 3 = 8

The equation becomes: 26 × 6 - 8 + 6

Multiplication: 26 × 6 = 156

The equation becomes: 156 - 8 + 6

Addition and Subtraction: 156 - 8 + 6 = 148 + 6 = 154

Explanation

The given series follows a pattern where the difference between consecutive terms increases by multiples of 9.

The differences between successive terms are: 10 - 1 = 9 28 - 10 = 18 55 - 28 = 27 91 - 55 = 36 136 - 91 = 45

The differences are 9, 18, 27, 36, and 45, which are consecutive multiples of 9. Following this pattern, the next difference must be 9 × 6 = 54.

Adding 54 to the last term gives 136 + 54 = 190.

Explanation

The pattern followed by the numbers in each set is that the first number is the product of the second and third numbers.

First number = Second number × Third number

Applying this to the first set: 9 × 18 = 162

Applying this to the second set: 11 × 21 = 231

Applying this same relationship to the set in option A: 28 × 12 = 336

Explanation

Correct Answer: D

The relationship between the numbers is determined by a constant ratio of 5:2. Multiplying the first number by 2/5 yields the second number.

For the first pair: 125 × 2/5 = 25 × 2 = 50

For the second pair: 230 × 2/5 = 46 × 2 = 92

Applying this same logic to 315: 315 × 2/5 = 63 × 2 = 126

Explanation

The series is based on adding consecutive multiples of 7 to each term to obtain the next term.

11 - 4 = 7 25 - 11 = 14 46 - 25 = 21 74 - 46 = 28

The differences form an arithmetic progression of 7, 14, 21, 28, where each difference is a multiple of 7. The next difference in this sequence is 35.

To find X, add 35 to the last term: 74 + 35 = 109

Explanation

We decode the expression P × Q ÷ R - T + S step-by-step using the given code definitions:

P × Q means P is the mother of Q. Q ÷ R means Q is the brother of R. R - T means R is the sister of T. T + S means T is the son of S.

From these relations, Q, R, and T are siblings because Q is the brother of R and R is the sister of T.

Since P is the mother of Q, she is also the mother of the other siblings, R and T.

Given that T is the son of S, and P is already established as T's mother, S must be the father of T.

This means P and S are the parents of the siblings, making P the wife of S.

Explanation

Based on the interchange rules, + is interchanged with × (+ ↔ ×), and - is interchanged with ÷ (- ↔ ÷).

Applying these interchanges to the equation 18 × 17 + 4 ÷ 22 - 2:

18 + 17 × 4 - 22 ÷ 2 = ?

Using the BODMAS rule: First, perform the division: 22 ÷ 2 = 11

Next, perform the multiplication: 17 × 4 = 68

Finally, perform the addition and subtraction: 18 + 68 - 11 = 75

Explanation

The series follows a specific addition pattern for each letter in the terms.

First letter of each term increases by 2 in its alphabetical position: A (1) + 2 = C (3), C (3) + 2 = E (5), E (5) + 2 = G (7), G (7) + 2 = I (9).

Second letter of each term increases by 2 in its alphabetical position: D (4) + 2 = F (6), F (6) + 2 = H (8), H (8) + 2 = J (10), J (10) + 2 = L (12).

Third letter of each term increases by 3 in its alphabetical position: E (5) + 3 = H (8), H (8) + 3 = K (11), K (11) + 3 = N (14), N (14) + 3 = Q (17).

Combining these letters yields ILQ.

Explanation

The coding scheme adds the alphabetical positional values of each letter in the word and then adds the total number of letters in that word to the sum.

For FLORENCE: The positional values are F = 6, L = 12, O = 15, R = 18, E = 5, N = 14, C = 3, E = 5. Sum of these values = 6 + 12 + 15 + 18 + 5 + 14 + 3 + 5 = 78. Number of letters in FLORENCE = 8. Total value = 78 + 8 = 86.

For GRATITUDE: The positional values are G = 7, R = 18, A = 1, T = 20, I = 9, T = 20, U = 21, D = 4, E = 5. Sum of these values = 7 + 18 + 1 + 20 + 9 + 20 + 21 + 4 + 5 = 105. Number of letters in GRATITUDE = 9. Total value = 105 + 9 = 114.

Applying the same rule to FOREIGN: The positional values are F = 6, O = 15, R = 18, E = 5, I = 9, G = 7, N = 14. Sum of these values = 6 + 15 + 18 + 5 + 9 + 7 + 14 = 74. Number of letters in FOREIGN = 7. Total value = 74 + 7 = 81.

Explanation

The given series follows a consistent addition pattern for each corresponding letter of the terms based on their alphabetical positions, where A = 1, B = 2, and so on, up to Z = 26.

For the first letter of each term, the pattern is to add 4 to the alphabetical position of the previous letter: M (13) + 4 = Q (17), Q (17) + 4 = U (21), U (21) + 4 = Y (25), and Y (25) + 4 = C (3, wrapping around the alphabet).

For the second letter of each term, the pattern is to add 5 to the alphabetical position: X (24) + 5 = C (3), C (3) + 5 = H (8), H (8) + 5 = M (13), and M (13) + 5 = R (18).

For the third letter of each term, the pattern is to add 6 to the alphabetical position: U (21) + 6 = A (1), A (1) + 6 = G (7), G (7) + 6 = M (13), and M (13) + 6 = S (19).

Applying these additions of +4, +5, and +6 to the respective letter positions of the term YMM yields the next term CRS.

Explanation

The question interchanges + with - and × with ÷ in the equation: 15 ÷ 5 + 12 × 3 - 5 = ?

Applying the interchanges: The first operator ÷ becomes × The second operator + becomes - The third operator × becomes ÷ The fourth operator - becomes +

The new equation is: 15 × 5 - 12 ÷ 3 + 5 = ?

Using the BODMAS rule: First, perform the division: 12 ÷ 3 = 4

Next, perform the multiplication: 15 × 5 = 75

Now, perform the addition and subtraction: 75 - 4 + 5 = 71 + 5 = 76

Explanation

In the coded expression P - B × V ÷ N + E:

P - B indicates that P is the brother of B.

B × V indicates that B is the sister of V. Thus, P, B, and V are siblings, with P being male.

V ÷ N indicates that V is the father of N.

N + E indicates that N is the wife of E.

Since V is the father of N, and P is the brother of V, P is the father's brother of N.

Explanation

The series is completed by repeating the three-letter pattern dcd four times to form a 12-letter sequence: dcd dcd dcd dcd.

Placing the letters d, c, c, d from the correct option sequentially into the four blanks of the series cdd_dd_ddc completes this repeating pattern.

Explanation

Comparing the two coded statements: all kings are beautiful is coded as 42 63 mo lue all queens are beautiful is coded as mo lue 63 36

The words all, are, and beautiful are common to both statements. Similarly, the codes 63, mo, and lue are common to both coded representations.

By eliminating these common elements from the first statement, the remaining word kings directly corresponds to the remaining unique code 42.

Explanation

To determine which conclusions follow, we analyze the logical relationships established by the statements.

From the first statement, we know that there is an intersection between keys and scales, meaning some keys are scales. The third statement tells us that all scales are papers, meaning the set of scales is completely contained within the set of papers. Because a portion of keys is also scales, and all scales are papers, that overlapping portion of keys must also be papers. This guarantees that some keys are papers, which directly means that some papers are keys. Therefore, conclusion (II) logically follows.

For the relationship between books and keys, we only have information connecting books to papers and keys to scales/papers. There is no specified connection between books and keys, and since all given statements are affirmative, no definite negative conclusion like "No books are keys" can be drawn. Therefore, conclusion (I) does not follow.

Explanation

The series consists of three components in each term: the first letter, the second letter, and the number.

For the first letter, the sequence follows consecutive alphabetical order: B, C, D, E, F. Thus, the first letter of the missing term is C.

For the second letter, the sequence also follows consecutive alphabetical order: V, W, X, Y, Z. Thus, the second letter of the missing term is W.

For the number, the sequence is an arithmetic progression with a constant difference of 4: 117 - 113 = 4 113 - 109 = 4

Applying this common difference to the first term, we find 101 + 4 = 105, and verifying with the next term, 105 + 4 = 109, which completes the pattern.

Combining these components gives CW 105.

Explanation

The relationship followed by the given pairs of numbers is y = x³ + 11, where x represents the first number and y represents the second number.

For the pair 4: 75, the calculation is 4³ + 11 = 64 + 11 = 75. For the pair 2: 19, the calculation is 2³ + 11 = 8 + 11 = 19.

Applying this same relationship to the pair 6: 212, we get: 6³ + 11 = 216 + 11 = 227

Since 227 is not equal to 212, this pair does not share the same relationship.

Explanation

The given series consists of three components: the first letter, the second letter, and the number.

For the first letter, the positional values in the English alphabet are M (13), K (11), ?, G (7), E (5). The positions of these letters decrease by 2 at each step: 13, 11, 9, 7, 5. The letter at position 9 is I.

For the second letter, the positional values are Y (25), Z (26), ?, B (2), C (3). The positions of these letters increase by 1 at each step, cyclically: 25, 26, 27 (which is 1, representing A), 2, 3. The letter is A.

For the number, the sequence is 27, 64, ?, 216, 343. These numbers are perfect cubes of consecutive integers starting from 3: 3³ = 27, 4³ = 64, 5³ = 125, 6³ = 216, 7³ = 343. The number is 125.

Combining these components yields IA 125.

Explanation

To find the day of the week on 16 December 1933 starting from Friday, 6 November 1925, the total number of odd days between the two dates is calculated.

First, the difference in years from 6 November 1925 to 6 November 1933 is 8 years. Among these 8 years, there are 2 leap years (1928 and 1932) and 6 ordinary years. Odd days from these years = (6 × 1) + (2 × 2) = 10 odd days.

Second, the number of days from 6 November 1933 to 16 December 1933 is calculated: Days left in November = 30 - 6 = 24 days. Days in December = 16 days. Total days in this period = 24 + 16 = 40 days.

Adding the odd days from the years and the days in the remaining period: Total days = 10 + 40 = 50 days.

To find the net odd days, divide the total days by 7: 50 ÷ 7 = 7 weeks and 1 odd day.

Adding 1 odd day to Friday gives Saturday.