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

Explanation

The given series can be divided into four groups of five letters each: T R I C _ T R I _ K T _ I W K _ R _ T K

By filling the blanks with the letters K, Z, R, T, I in sequence, we get: Group 1: T R I C K Group 2: T R I Z K Group 3: T R I W K Group 4: T R I T K

Each five-letter group begins with T R I and ends with K. The fourth letter of each group decreases by 3 positions in the reverse alphabetical order: C (which is 29 in the cyclical alphabet) - 3 = Z (26) Z (26) - 3 = W (23) W (23) - 3 = T (20)

This pattern completes the series logically with the letters KZRTI.

Explanation

The number of days between 15 January 2019 and 15 January 2020 is 365 days, because 2019 is a non-leap year and the extra day of the leap year 2020 occurs in February, which is after this period.

Dividing 365 by 7 gives a remainder of 1 odd day (365 = 52 × 7 + 1). Adding 1 day to Tuesday, 15 January 2020 is a Wednesday.

The duration between 15 January 2020 and 29 January 2020 is 14 days (29 - 15 = 14). Dividing 14 by 7 leaves a remainder of 0 odd days. Consequently, 29 January 2020 falls on the same day of the week as 15 January 2020, which is Wednesday.

Explanation

To determine the relationship represented by the expression A x B - C, we decode it step-by-step from left to right using the given definitions:

First, A x B means A is the brother of B.

Second, B - C means B is the mother of C.

Combining these two relationships, B is the mother of C, and A is the brother of B. Therefore, A is the brother of C's mother.

Explanation

The code language rearranges the letters of a six-letter word by mapping their original positions (1, 2, 3, 4, 5, 6) to the new sequence (3, 4, 2, 5, 1, 6).

In MENIAL: 1:M, 2:E, 3:N, 4:I, 5:A, 6:L Rearranging to 3-4-2-5-1-6 gives NIEAML.

In INCOME: 1:I, 2:N, 3:C, 4:O, 5:M, 6:E Rearranging to 3-4-2-5-1-6 gives CONMIE.

Applying this same mapping to FOREGO: 1:F, 2:O, 3:R, 4:E, 5:G, 6:O Rearranging to 3-4-2-5-1-6 gives REOGFO.

Explanation

The given series follows an alternating subtraction pattern where 67 and 43 are subtracted from the terms in succession:

549 - 67 = 482 482 - 43 = 439 439 - 67 = 372 372 - 43 = 329 329 - 67 = 262 262 - 43 = 219

Following this alternating pattern of subtracting 67 and then 43, the next term is calculated by subtracting 67 from the last term:

219 - 67 = 152

Explanation

Correct Answer: D

From the first two statements, all paints are houses and all houses are wood. Since the set of paints is entirely contained within the set of houses, and the set of houses is entirely contained within the set of wood, it transitively follows that the set of paints is entirely contained within the set of wood. Therefore, all paints are wood, which makes conclusion (II) logically follow.

The third statement states that some streets are wood, meaning there is an intersection between the set of streets and the set of wood. Since houses are a subset of wood, this intersection does not guarantee any overlap between streets and houses. Thus, conclusion (I) does not logically follow.

Explanation

The series follows a consistent pattern where each letter in the group is shifted forward by three positions in the English alphabetical order.

For the first letter of each group, the pattern is E (+3) → H (+3) → K (+3) → N (+3) → Q.

For the second letter of each group, the pattern is C (+3) → F (+3) → I (+3) → L (+3) → O.

For the third letter of each group, the pattern is Z (+3) → C (+3) → F (+3) → I (+3) → L.

Combining these letters in their respective positions yields the next term QOL.

Explanation

The logic followed in the given pairs is a constant ratio of 3:4 between the first number and the second number.

For the first pair: 72 ÷ 96 = 3/4

For the second pair: 66 ÷ 88 = 3/4

Applying the same logic to find the number related to 104: x ÷ 104 = 3/4 x = 104 × 3 ÷ 4 x = 26 × 3 x = 78

Explanation

Each letter of the word is coded by multiplying its alphabetical positional value by 3. Applying this rule to 'APRON' (A=1, P=16, R=18, O=15, N=14) gives (13) - (163) - (183) - (153) - (14*3), which is 3 - 48 - 54 - 45 - 42.

Explanation

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

100 - 91 = 9 109 - 100 = 9 118 - 109 = 9 127 - 118 = 9

To find the next term in the series, add 9 to the last term:

127 + 9 = 136

Explanation

The given expression P @ Q # R | S @ T can be decoded step-by-step to find the relation between T and P:

P @ Q indicates that P is the husband of Q, making Q the wife of P.

Q # R indicates that Q is the mother of R. Since Q is married to P, R is the child of P and Q.

R | S indicates that R is the sister of S, which means R and S are siblings. Therefore, S is also a child of P and Q.

S @ T indicates that S is the husband of T. Since S is a husband, S is male, making him the son of P and Q.

Since T is married to S, who is the son of P, T is the son's wife of P.

Explanation

The series follows a specific addition pattern for each letter position based on their English alphabetical order values.

For the first letter of each term, the pattern is to add 3 to the alphabetical position of the previous letter: P (16) + 3 = S (19) S (19) + 3 = V (22) V (22) + 3 = Y (25) Y (25) + 3 = B (28, which wraps around to 2)

For the second letter of each term, the pattern is to add 10 to the alphabetical position of the previous letter: H (8) + 10 = R (18) R (18) + 10 = B (28, which wraps around to 2) B (2) + 10 = L (12) L (12) + 10 = V (22)

For the third letter of each term, the pattern is to add 1 to the alphabetical position of the previous letter: O (15) + 1 = P (16) P (16) + 1 = Q (17) Q (17) + 1 = R (18) R (18) + 1 = S (19)

Combining these three results gives the term YLR.

Explanation

By analyzing the position of each letter in the five four-letter groups, we can identify distinct arithmetic progressions for each letter position:

For the first letter in each group: A, D, G, J, M. The alphabetical positions increase by 3: 1, 4, 7, 10, 13.

For the second letter in each group: B, E, third blank, K, fifth blank. The positions increase by 3: 2, 5, 8 (H), 11, 14 (N). Thus, the third blank is H and the fifth blank is N.

For the third letter in each group: first blank, F, I, L, O. The positions increase by 3: 3 (C), 6, 9, 12, 15. Thus, the first blank is C.

For the fourth letter in each group: Z, second blank, X, fourth blank, V. The positions decrease by 1: 26, 25 (Y), 24, 23 (W), 22. Thus, the second blank is Y and the fourth blank is W.

Placing these letters sequentially yields C, Y, H, W, N.

Explanation

The relationship between the words in the given pair, Pleasure and Delight, is that of synonyms, as both words share a highly similar meaning of great happiness or satisfaction. Similarly, Demolish and Destroy are synonyms, as both words mean to damage, ruin, or pull down a structure or object completely, thereby representing the exact same semantic relationship.

Explanation

After interchanging the operators "+" with "-" and "×" with "÷" in the expression: 198 × 9 + 29 - 7 ÷ 10

The expression becomes: 198 ÷ 9 - 29 + 7 × 10

Applying the BODMAS rule:

First, perform the division: 198 ÷ 9 = 22

Next, perform the multiplication: 7 × 10 = 70

Substitute these values back into the expression: 22 - 29 + 70

Finally, perform the addition and subtraction: 22 - 29 + 70 = -7 + 70 = 63

Explanation

The relationship among the numbers in each set is defined by the formula: First number = Second number × Third number.

In the first set (245, 49, 5): 49 × 5 = 245

In the second set (144, 9, 16): 9 × 16 = 144

Following this same relation, the set (200, 8, 25) satisfies the formula: 8 × 25 = 200

Explanation

The given series follows an alternating multiplication pattern of × 4 and × 3.

7 × 4 = 28 28 × 3 = 84 84 × 4 = 336 336 × 3 = 1008

Following this pattern, the next term is obtained by multiplying the previous term by 4:

1008 × 4 = 4032

Explanation

The given word pair, Proud and Arrogant, consists of synonyms because both words refer to having or showing a high or excessively high opinion of oneself. Authentic and Genuine share this exact same relationship, as both words are synonyms used to describe something that is real, true, and actual rather than copied or false.

Explanation

In the expression L - F + K - P, the relations can be decoded from left to right: L - F means L is the sister of F. F + K means F is the father of K. Since F is a father, F is male, making him the brother of L. K - P means K is the sister of P, which establishes that K is female.

Since F is L's brother and F is the father of the female K, K is the brother's daughter (niece) of L.

Explanation

To determine which conclusions follow, we can analyze the relationships between the sets using basic set theory. Let the sets of pens, scales, erasers, and calculators be represented by P, S, E, and C respectively.

The statement that no pen is a scale means P and S are disjoint sets (P ∩ S = ∅). All scales are erasers means S is a subset of E (S ⊆ E). All pens are calculators means P is a subset of C (P ⊆ C).

For Conclusion I, we evaluate whether some erasers must be calculators. It is possible for the set of erasers E and the set of calculators C to be completely disjoint. For instance, if E and C share no common elements, all given statements can still be true. Thus, Conclusion I does not logically follow.

For Conclusion II, we evaluate whether no pen is an eraser. Although no pen is a scale, the set of erasers E can contain elements outside of S which overlap with the set of pens P. Since P and E can have a non-empty intersection, Conclusion II does not logically follow.

For Conclusion III, we evaluate whether no scale is a calculator. Although no pen is a scale, the set of calculators C can contain elements outside of P that overlap with the set of scales S. Since S and C can have a non-empty intersection, Conclusion III does not logically follow.

Because none of the three conclusions are definitely true in all possible scenarios, none of the conclusions follow.

Explanation

Comparing the two words COMB and MOBE, the common letters are M, O, and B. Comparing their respective codes, 2681 and 8163, the common digits are 1, 6, and 8.

The unique letter in the second word MOBE is E, and the unique remaining digit in its code is 3. Thus, the code for E is 3.

Explanation

By decoding the letter symbols to their correct mathematical operators based on standard arithmetic logic to solve the equation: M stands for + Z stands for ÷ T stands for - H stands for ×

Substituting these operators into the given equation: 52 + 36 ÷ 18 - 46 × 19

Applying the BODMAS rule, we first perform the division: 36 ÷ 18 = 2

Next, we perform the multiplication: 46 × 19 = 874

Now, substituting these values back into the expression: 52 + 2 - 874

Finally, performing the addition and subtraction: 54 - 874 = -820

Explanation

The original word is MENTOR.

Arranging the letters of MENTOR in alphabetical order gives E, M, N, O, R, T.

By comparing the positions of the letters in both sequences: Original: M E N T O R New: E M N O R T

Only the letter N (at the third position) remains in its original position. All other letters change their positions. Thus, the position of only one letter remains unchanged.

Explanation

The number of years between 17 August 2003 and 17 August 2014 is 11 years.

Each ordinary year has 1 odd day, while each leap year has 2 odd days. Between 17 August 2003 and 17 August 2014, the leap years are 2004, 2008, and 2012, making a total of 3 leap years and 8 ordinary years.

The number of odd days in this 11-year period is calculated as: (8 × 1) + (3 × 2) = 8 + 6 = 14 odd days

Since 14 is a multiple of 7, the number of net odd days is 0. This means 17 August 2014 was also a Sunday.

To find the day on 12 September 2014, calculate the number of days from 17 August 2014 to 12 September 2014: Remaining days in August = 31 - 17 = 14 days Days in September = 12 days Total days = 14 + 12 = 26 days

Dividing 26 by 7 to find the odd days: 26 ÷ 7 = 3 weeks and 5 remaining days (5 odd days)

Adding 5 days to Sunday results in Friday.

Explanation

The relation between the first and second number is obtained by dividing the first number by 5.

For the first pair: 100 ÷ 5 = 20

For the second pair: 250 ÷ 5 = 50

Applying the same mathematical logic to 550: 550 ÷ 5 = 110

Explanation

By decoding the letters as mathematical operators, we have: H stands for ÷ (division) A stands for + (addition) L stands for × (multiplication) B stands for - (subtraction)

Substituting these operators into the given equation: 84 ÷ 42 + 63 × 46 - 23

Applying the BODMAS rule: First, perform the division: 84 ÷ 42 = 2

Next, perform the multiplication: 63 × 46 = 2898

Now, perform the addition and subtraction: 2 + 2898 - 23 = 2900 - 23 = 2877