SSC CHSL Tier 1 2024 General Intelligence & Reasoning Questions with Solutions

Explanation

To find the day of the week on 17 August 2017 given that 16 September 2010 is Thursday, we calculate the total number of odd days between these two dates.

First, calculate the odd days from 16 September 2010 to 16 September 2017. The difference is 7 years. Within these 7 years, there are 2 leap years (2012 and 2016) and 5 ordinary years.

Total odd days = (2 × 2) + (5 × 1) = 9 days 9 days ≡ 2 odd days (since 9 ÷ 7 leaves a remainder of 2)

Thus, 16 September 2017 is Thursday + 2 days = Saturday.

Next, move backward from 16 September 2017 to 17 August 2017. The total number of days between these dates is: Remaining days in August = 31 - 17 = 14 days Days in September = 16 days Total days = 14 + 16 = 30 days 30 days ≡ 2 odd days (since 30 ÷ 7 leaves a remainder of 2)

Since we are moving backward from September to August: Day on 17 August 2017 = Saturday - 2 days = Thursday.

Explanation

The given series alternates between subtracting 35 and adding 54 to find each subsequent term:

291 - 35 = 256 256 + 54 = 310 310 - 35 = 275 275 + 54 = 329 329 - 35 = 294

Following this established pattern, the next operation is to add 54 to the preceding number:

294 + 54 = 348

Alternatively, the series consists of two interleaved sub-series, both of which increase by 19 at each step. The terms at odd positions are 291, 310, 329, which increase by 19. The missing seventh term belongs to this sub-series and is calculated as 329 + 19 = 348. The terms at even positions are 256, 275, 294, which also increase by 19.

Explanation

The relationship in the given pair is that an antibiotic is a remedy used to counteract, treat, or eliminate an infection. Similarly, an antidote is a substance used to counteract or neutralize the effects of poisoning. Both pairs represent a counteracting agent and the harmful condition it is designed to treat.

Explanation

The series follows a multiplication pattern where each number is multiplied by consecutive integers starting from 2. Specifically, 15 multiplied by 2 is 30, 30 multiplied by 3 is 90, 90 multiplied by 4 is 360, 360 multiplied by 5 is 1800, and multiplying 1800 by 6 gives 10800.

Explanation

The logic of the analogy is based on adding a constant value to the first number to obtain the second number.

The relationship between 30 and 216 is: 30 + 186 = 216

The relationship between 40 and 226 follows the same logic: 40 + 186 = 226

Applying the same logic to 50: 50 + 186 = 236

Explanation

The relation between the three numbers (a, b, c) in each set is defined by the formula:

b = a² + c²

Applying this relation to the given sets: For (3, 34, 5): 3² + 5² = 9 + 25 = 34 For (10, 136, 6): 10² + 6² = 100 + 36 = 136

Applying the same logic to the numbers in the correct option: For (7, 113, 8): 7² + 8² = 49 + 64 = 113

Explanation

By decoding the expression P × Q - R ÷ S + T step-by-step:

P × Q means P is the wife of Q. This implies P is female and Q is male.

Q - R means Q is the brother of R.

R ÷ S means R is the father of S. This implies R is male.

S + T means S is the son of T. Since R is already established as the father of S, T must be the mother of S and therefore the wife of R.

From T's perspective, R is her husband. Since Q is the brother of R, Q is T's husband's brother. Since P is the wife of Q, P is T's husband's brother's wife.

Explanation

The coding pattern shifts the letter in the third position forward by three steps (+3) in alphabetical order, while the letters in all other positions (first, second, fourth, and fifth) are shifted forward by one step (+1).

Applying this pattern to KIOSK: K (+1) = L I (+1) = J O (+3) = R S (+1) = T K (+1) = L This gives LJRTL.

Applying this pattern to FLAME: F (+1) = G L (+1) = M A (+3) = D M (+1) = N E (+1) = F This gives GMDNF.

Applying the same pattern to ENJOY: E (+1) = F N (+1) = O J (+3) = M O (+1) = P Y (+1) = Z This gives FOMPZ.

Explanation

Comparing the two coded statements: 'bottle is blue' is coded as 'see mo tu' 'sky is blue' is coded as 'mo tu lo'

The common words in both statements are 'is' and 'blue', which correspond to the common codes 'mo' and 'tu'. Removing these common terms from the first statement leaves the word 'bottle' matching with the remaining code 'see'.

Explanation

The letter codes represent standard arithmetic operations where A represents addition (+), B represents multiplication (×), C represents division (÷), and D represents subtraction (-).

Substituting these operators into the expression in option C: 22 B 6 D 190 C 2 A 22 = 22 × 6 - 190 ÷ 2 + 22

Following the BODMAS order of operations, division is performed first: 190 ÷ 2 = 95

Next, multiplication is performed: 22 × 6 = 132

Finally, perform subtraction and addition from left to right: 132 - 95 + 22 = 37 + 22 = 59

Explanation

The standard pattern shared by the other letter-clusters is a positional difference of +3, -2, and +1 between consecutive letters. The first letter is increased by 3 to get the second, which is then decreased by 2 to get the third, and finally increased by 1 to get the fourth letter.

In FJHI, the alphabetical positions of the letters are F(6), J(10), H(8), and I(9). The positional differences between consecutive letters in this cluster are +4, -2, and +1. Since the first transition from F to J is a difference of +4 instead of +3, this cluster deviates from the common pattern.

Explanation

The relationship in the given pair is Maker : Product, where a carpenter is a professional who crafts or creates furniture. Similarly, a cook is a professional who prepares or makes soup, representing the identical relationship of a creator to their creation.

Explanation

The 20-letter series can be divided into four groups of five letters each: Group 1: _ W S V R Group 2: _ Q T P S Group 3: _ R N Q M Group 4: _ L O K _

There is a systematic relationship between alternating groups where each letter in the latter group is shifted backward by 5 positions in alphabetical order.

Comparing Group 1 and Group 3: The 1st letters are T and O (T - 5 = O). This gives the first blank as T and the third blank as O. The remaining corresponding letters follow the same -5 pattern: W - 5 = R, S - 5 = N, V - 5 = Q, and R - 5 = M.

Comparing Group 2 and Group 4: The 1st letters are U and P (U - 5 = P). This gives the second blank as U and the fourth blank as P. The remaining corresponding letters also follow the -5 pattern: Q - 5 = L, T - 5 = O, P - 5 = K, and S - 5 = N (which gives the fifth blank as N).

Additionally, the relationship between consecutive groups (Group 1 to Group 2, and Group 3 to Group 4) follows an alternating pattern of +1 and -6: 1st letter: +1 (T to U, and O to P) 2nd letter: -6 (W to Q, and R to L) 3rd letter: +1 (S to T, and N to O) 4th letter: -6 (V to P, and Q to K) 5th letter: +1 (R to S, and M to N)

Putting the values of the blanks together in order, we get T, U, O, P, N.

Explanation

By replacing the letters with their respective mathematical operators: K represents ÷ (division) M represents + (addition) T represents × (multiplication) G represents - (subtraction)

The given equation becomes: 100 ÷ 5 + 73 × 48 + 56 - 23

Applying the BODMAS rule: First, perform the division: 100 ÷ 5 = 20

Next, perform the multiplication: 73 × 48 = 3504

Now, substitute these values back into the equation: 20 + 3504 + 56 - 23

Next, perform the addition: 20 + 3504 + 56 = 3580

Finally, perform the subtraction: 3580 - 23 = 3557

Explanation

By analyzing the alphabetical positions of each letter in the series terms, we can find a consistent pattern for each position:

For the first letter of each term: Z (26) to E (5) is +5 (wrapping around the alphabet), E (5) to J (10) is +5. Continuing this pattern, J (10) + 5 = 15, which corresponds to O. Adding 5 to O (15) gives T (20), which fits the final term.

For the second letter of each term: R (18) to U (21) is +3, U (21) to X (24) is +3. Continuing this pattern, X (24) + 3 = 27, which wraps around to 1, corresponding to A. Adding 3 to A (1) gives D (4), which fits the final term.

For the third letter of each term: J (10) to K (11) is +1, K (11) to L (12) is +1. Continuing this pattern, L (12) + 1 = 13, which corresponds to M. Adding 1 to M (13) gives N (14), which fits the final term.

Combining these three positions gives the term OAM.

Explanation

Substituting the correct mathematical operators in place of the letter codes, where H represents +, Q represents ×, Z represents ÷, and E represents -:

17 + 23 × 42 ÷ 7 - 13

Applying the BODMAS rule:

First, perform the division operation: 42 ÷ 7 = 6

Next, perform the multiplication operation: 23 × 6 = 138

Then, perform the addition operation: 17 + 138 = 155

Finally, perform the subtraction operation: 155 - 13 = 142

Explanation

When the letters of the word COUNTED are arranged in English alphabetical order, the original letters and their rearranged positions are as follows:

Original word: C O U N T E D Alphabetical order: C D E N O T U

Comparing each position: The letter C remains in the first position. The letter N remains in the fourth position.

Thus, the positions of exactly two letters, C and N, remain unchanged.

Explanation

The given series consists of the cubes of consecutive even numbers starting from 8.

8³ = 512 10³ = 1000 12³ = 1728 14³ = 2744 16³ = 4096 18³ = 5832

Following this pattern, the next term in the sequence is the cube of the next even number, which is 20.

20³ = 8000

Explanation

The relation between the numbers is that the second number is obtained by multiplying the first number by 8.

For the first pair: 17 × 8 = 136

For the second pair: 23 × 8 = 184

Applying the same logic to 29: 29 × 8 = 232

Explanation

By replacing the letters with their respective mathematical operators, where A represents ÷, B represents ×, C represents +, and D represents -, the equation becomes:

26 × 3 + 5 - 120 ÷ 4

Applying the BODMAS rule:

First, perform the division: 120 ÷ 4 = 30

The equation becomes: 26 × 3 + 5 - 30

Next, perform the multiplication: 26 × 3 = 78

The equation becomes: 78 + 5 - 30

Finally, perform addition and subtraction: 78 + 5 - 30 = 83 - 30 = 53

Explanation

The series follows a specific mathematical pattern for each corresponding letter in the clusters. By converting the letters of each cluster to their numerical positions in the English alphabet (A = 1, B = 2, ..., Z = 26):

For the first letter: L (12) + 8 = T (20) T (20) + 8 = B (28, which is 2) B (2) + 8 = J (10) J (10) + 8 = R (18) The pattern is +8.

For the second letter: P (16) - 7 = I (9) I (9) - 7 = B (2) B (2 or 28) - 7 = U (21) U (21) - 7 = N (14) The pattern is -7.

For the third letter: T (20) + 6 = Z (26) Z (26) + 6 = F (32, which is 6) F (6) + 6 = L (12) L (12) + 6 = R (18) The pattern is +6.

Combining these letters yields TIZ.

Explanation

The relation between the three numbers (a, b, c) in each set is defined by the formula:

a = b × c

Applying this formula to the given sets:

35 = 5 × 7

108 = 12 × 9

For the set (91, 13, 7):

91 = 13 × 7

This satisfies the same mathematical relation.

Explanation

Comparing the two coded statements, the word common to both English sentences is 'you'. Correspondingly, the only code word common to both coded expressions is 'De'. Therefore, 'you' is represented by 'De'.

Explanation

The series is divided into four groups of four letters each: PQRS, OSTT, NUVU, and MWXV. In these groups, the first letter decreases by 1 (P to O to N to M), the second letter increases by 2 (Q to S to U to W), the third letter increases by 2 (R to T to V to X), and the fourth letter increases by 1 (S to T to U to V). Inserting the letters SNUX into the blanks completes this pattern.

Explanation

When the letters of the word POWDERS are arranged in alphabetical order, they form the sequence DEOPRSW. Comparing the original word (POWDERS) with the sorted sequence (DEOPRSW) shows that no letter remains in its original position, which corresponds to None.

Explanation

To analyze the conclusions, we look at the logical connections between the terms:

Conclusion I states that all dolls are paper. The statements mention that some bags are paper and some bags are dolls. Since there is no statement connecting dolls directly to paper, we cannot establish any definite relation between them. Thus, Conclusion I does not follow.

Conclusion II states that some bags are wood. The statements show that all wood is inside paper, and some bags are paper. Since wood is a subset of paper, the intersecting part of bags and paper does not necessarily have to overlap with wood. Thus, Conclusion II does not follow.

Explanation

By decoding the expression step by step: M × O means M is the father of O. T + M means T is the wife of M, which makes T the mother of O. K × T means K is the father of T. Since T is the mother of O and K is the father of T, K is the mother's father of O.

Explanation

By decoding the letter symbols as mathematical operators, we have: T represents + (addition) P represents ÷ (division) Q represents × (multiplication) R represents - (subtraction)

Substituting these operators into the given equation yields: 24 + 36 ÷ 48 × 32 - 40 + 53

Applying the BODMAS rule to solve the expression:

First, perform the division operation: 36 ÷ 48 = 3/4

Next, perform the multiplication operation: 3/4 × 32 = 24

Finally, perform the addition and subtraction operations from left to right: 24 + 24 - 40 + 53 = 48 - 40 + 53 = 8 + 53 = 61

Explanation

The given series is an arithmetic progression where each term is obtained by adding a constant difference of 9 to the preceding term.

128 - 119 = 9 137 - 128 = 9 146 - 137 = 9 155 - 146 = 9

Following this pattern, the next term in the series is calculated by adding 9 to the last given term:

155 + 9 = 164

Explanation

Using the mathematical operator mapping: A stands for ÷ (division) B stands for × (multiplication) C stands for + (addition) D stands for - (subtraction)

Substitute these operators into the expression in option D: 109 B 6 D 16 A 2 C 6 = 109 × 6 - 16 ÷ 2 + 6

Applying the BODMAS rule (Division, Multiplication, Addition, Subtraction):

First, perform the division: 16 ÷ 2 = 8

Next, perform the multiplication: 109 × 6 = 654

Finally, solve the addition and subtraction from left to right: 654 - 8 + 6 = 646 + 6 = 652

Explanation

By comparing the two coded sentences: 'now or never' is coded as 'ak bj ut' 'never be late' is coded as 'bj tl cv'

The word 'never' is the only common word in both sentences, and 'bj' is the only common code in both code sets. Therefore, 'never' is coded as 'bj'.

Explanation

The relationship between the words in the given pair Pleasure and Pain is antonymous, as they represent direct opposite states of feeling. Similarly, Gentle and Brutal share the exact same relationship of being antonyms, where Gentle denotes a mild or kind temperament, and Brutal denotes a harsh or savage nature.

Explanation

The relationship in the given pair is between an animal and its characteristic vocal sound, as a dog is known to bark. Similarly, the characteristic sound made by a donkey is called a bray.

Explanation

In the letter-cluster CWSR, the alphabetical positions of the letters are C = 3 (or 29), W = 23, S = 19, and R = 18. The differences between the consecutive letters are: 29 - 6 = 23 (W) 23 - 4 = 19 (S) 19 - 1 = 18 (R) This sequence of positional differences (-6, -4, -1) differs from the common pattern of -6, -4, -2 shared by the other letter-clusters.

Explanation

The letter clusters in the group follow a specific pattern where the alphabetical position increases by 3 from the first to the second letter, and then by 5 from the second to the third letter. FIM does not conform to this pattern. In FIM, the alphabetical positions of the letters are F = 6, I = 9, and M = 13. The difference between F and I is 3, but the difference between I and M is 4, making it the odd one out.

Explanation

To find how P is related to T from the expression P + Q × R - S + T, we decode the relationships step-by-step:

Q × R means Q is the wife of R.

R - S means R is the father of S. Since Q is the wife of R, Q is the mother of S.

S + T means S is the sibling (sister) of T. This makes Q the mother of T as well.

P + Q means P is the sister of Q.

Since Q is the mother of T and P is the sister of Q, P is the mother's sister of T.

Explanation

The number of odd days between 4 December 2014 and 4 December 2018 can be found by counting the ordinary and leap years. The 4-year period from 2014 to 2018 contains 3 ordinary years (2015, 2017, 2018) and 1 leap year (2016).

Each ordinary year has 1 odd day and each leap year has 2 odd days. Odd days from 2014 to 2018 = (3 × 1) + (1 × 2) = 5 odd days.

The number of days from 4 December 2018 to 10 December 2018 is 10 - 4 = 6 days, which contributes 6 odd days.

Total odd days = 5 + 6 = 11 days. Dividing 11 by 7 gives a remainder of 4 odd days.

Adding 4 days to Thursday results in Monday.

Explanation

To find the code for 'O', we compare the letters and the corresponding code digits of the two words.

The letters in CODE are C, O, D, and E, which are represented by the set of digits {1, 5, 7, 3}. The letters in DICE are D, I, C, and E, which are represented by the set of digits {7, 1, 8, 5}.

Comparing the two words, the letters C, D, and E are common to both CODE and DICE. Correspondingly, the digits 1, 5, and 7 are common to both code sets {1, 5, 7, 3} and {7, 1, 8, 5}.

By eliminating these common elements, the remaining letter in CODE is O, and the remaining digit in its code set is 3. Therefore, 'O' is coded as 3.

Explanation

To determine which conclusions follow, we analyze the relationships given in the statements using set theory.

Let S represent strawberries, O represent oranges, K represent kiwis, and M represent melons.

The statements establish that some S are O (S ∩ O ≠ ∅), some O are K (O ∩ K ≠ ∅), and all K are M (K ⊆ M).

For conclusion I, since there are no negative statements, there is no restriction preventing strawberries from overlapping with melons. Thus, we cannot definitively conclude that no strawberry is a melon.

For conclusion II, there is no statement that forces all strawberries to be melons. We can easily construct a valid Venn diagram where some or all strawberries lie entirely outside the melon circle. Hence, this conclusion does not logically follow.

For conclusion III, there is no direct or indirect link established between strawberries and kiwis. They can be completely disjoint sets while still satisfying all the given statements. Therefore, this conclusion does not logically follow.

Since none of the conclusions I, II, or III definitely follow from the given statements, the correct option is that neither conclusions I, II, nor III follows.

Explanation

The letters in the equation represent the standard mathematical operations as follows: A stands for ÷ (division) B stands for × (multiplication) C stands for + (addition) D stands for - (subtraction)

Substituting these operators into the given expression: 35 × 7 - 120 ÷ 12 + 38

According to the BODMAS rule, perform division first: 120 ÷ 12 = 10

Next, perform multiplication: 35 × 7 = 245

Substitute these values back into the expression: 245 - 10 + 38

Finally, perform subtraction and addition from left to right: 235 + 38 = 273

Explanation

The letters represent mathematical operators as follows: A represents ÷ B represents × C represents + D represents -

Substituting these operators into the expression in option C: 94 × 11 - 180 ÷ 4 + 60

Applying the BODMAS rule: First, perform the division: 180 ÷ 4 = 45

Next, perform the multiplication: 94 × 11 = 1034

Now, substitute these values back into the expression: 1034 - 45 + 60

Finally, perform subtraction and addition: 1034 - 45 = 989 989 + 60 = 1049

Explanation

By interchanging the numbers 42 and 36 in the given equation, the expression becomes:

(99 - 36 + 11) + (42 ÷ 6) × 7 - 50

Solving the equation using the BODMAS rule:

First, calculate the terms inside the parentheses: 99 - 36 + 11 = 63 + 11 = 74 42 ÷ 6 = 7

Substitute these values back into the equation: 74 + 7 × 7 - 50

Next, perform the multiplication: 74 + 49 - 50

Finally, perform addition and subtraction from left to right: 123 - 50 = 73

The left-hand side is now equal to the right-hand side, making the equation correct.

Explanation

To find the day of the week on 21 August 2005, we first calculate the number of odd days between 18 August 2000 and 18 August 2005.

The number of years between these two dates is 5. Out of these, 2004 is a leap year, while 2001, 2002, 2003, and 2005 are ordinary years. Although 2000 is a leap year, its extra day (29 February) is not included because the interval starts after that date.

An ordinary year contains 1 odd day, and a leap year contains 2 odd days. Odd days from the years = (4 × 1) + (1 × 2) = 6 odd days.

Next, we add the days from 18 August 2005 to 21 August 2005: Additional days = 21 - 18 = 3 days.

Total odd days = 6 + 3 = 9 days. Dividing 9 by 7 gives a remainder of 2 odd days.

Adding 2 days to Friday results in Sunday.

Explanation

By comparing the two coded words, we have: Word BAKE consists of the letters B, A, K, and E, with the code digits 2, 4, 9, and 6. Word CAKE consists of the letters C, A, K, and E, with the code digits 4, 3, 6, and 9.

The common letters in both words are A, K, and E. The corresponding common digits in both codes are 4, 6, and 9. This means the set of letters {A, K, E} corresponds to the set of digits {4, 6, 9} in some order.

The letter B is unique to the word BAKE, and the digit 2 is the only digit unique to its code 2496. Therefore, the letter B is coded as 2.

Explanation

The given series follows a distinct pattern for each letter position of the three-letter words.

For the first letter of each term, the alphabetical positions increase by +2: O (15) + 2 = Q (17) Q (17) + 2 = S (19) S (19) + 2 = U (21) U (21) + 2 = W (23) This gives S as the first letter.

For the second letter of each term, the alphabetical positions increase by +4: W (23) + 4 = A (27 or 1) A (1) + 4 = E (5) E (5) + 4 = I (9) I (9) + 4 = M (13) This gives E as the second letter.

For the third letter of each term, the alphabetical positions increase by +5: L (12) + 5 = Q (17) Q (17) + 5 = V (22) V (22) + 5 = A (27 or 1) A (1) + 5 = F (6) This gives V as the third letter.

Combining these letters results in SEV.

Explanation

The series is formed by the continuous repetition of a 6-letter pattern: xyxzbx.

Repeating this pattern four times results in the following sequence: xyxzbx | xyxzbx | xyxzbx | xyxzbx

Comparing this target sequence with the given series: xy_z_xxy_zbx_yx_bx_y_z_x

We can divide the given series to match the 6-letter pattern: 1st block: xy[x]z[b]x 2nd block: xy[x]zbx 3rd block: [x]yx[z]bx 4th block: [x]y[x]z[b]x

Filling in the blanks to complete each xyxzbx block yields the letters: x, b, x, z, x, x, b.

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

Explanation

The relationship between the numbers is determined by dividing the first number by 7 to get the second number.

161 ÷ 7 = 23 301 ÷ 7 = 43

Applying this same division logic to 427:

427 ÷ 7 = 61

Explanation

Interchanging the numbers 69 and 48 in the given equation gives: 48 + 15 - (14 × 4) ÷ 2 + (69 ÷ 3) = 58

Applying the BODMAS rule to solve the left-hand side (LHS):

First, calculate the terms inside the parentheses: 14 × 4 = 56 69 ÷ 3 = 23

Substitute these values back into the equation: 48 + 15 - 56 ÷ 2 + 23

Next, perform the division: 56 ÷ 2 = 28

Now substitute and perform addition and subtraction from left to right: 48 + 15 - 28 + 23 63 - 28 + 23 35 + 23 = 58

The LHS equals the right-hand side (RHS), which is 58.

Explanation

The relation between the three numbers in each set (a, b, c) follows the formula: c = a × b × 4

Let us verify this logic with the given sets: For (11, 8, 352): 11 × 8 × 4 = 88 × 4 = 352 For (15, 6, 360): 15 × 6 × 4 = 90 × 4 = 360

Applying the same formula to the correct option: For (16, 5, 320): 16 × 5 × 4 = 80 × 4 = 320

Explanation

The relationship between the letter groups is established by adding 7 to the alphabetical position of each letter, wrapping around from Z to A when necessary (modulo 26).

By assigning numerical values to the letters where A = 1, B = 2, C = 3, and so on up to Z = 26:

For TMBF to ATIM: T (20) + 7 = 27, which wraps around to 1 (A) M (13) + 7 = 20 (T) B (2) + 7 = 9 (I) F (6) + 7 = 13 (M)

For CLGP to JSNW: C (3) + 7 = 10 (J) L (12) + 7 = 19 (S) G (7) + 7 = 14 (N) P (16) + 7 = 23 (W)

Applying this same pattern to QEAD: Q (17) + 7 = 24 (X) E (5) + 7 = 12 (L) A (1) + 7 = 8 (H) D (4) + 7 = 11 (K)

Thus, QEAD relates to XLHK.