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

Explanation

The given number series follows an alternating addition pattern where 2 and 4 are added to consecutive terms:

22 + 2 = 24 24 + 4 = 28 28 + 2 = 30 30 + 4 = 34

Following this alternating sequence of differences (+2, +4, +2, +4), the next operation must be to add 2 to the last term:

34 + 2 = 36

Explanation

By interchanging the operators according to the given conditions where + and × are interchanged, and - and ÷ are interchanged, the expression 35 × 96 - 8 + 3 ÷ 11 is rewritten as:

35 + 96 ÷ 8 × 3 - 11

Following the BODMAS rule:

First, perform the division operation: 96 ÷ 8 = 12

Now substitute this back into the expression: 35 + 12 × 3 - 11

Next, perform the multiplication operation: 12 × 3 = 36

Substitute this back into the expression: 35 + 36 - 11

Finally, perform addition and subtraction: 71 - 11 = 60

Explanation

The given expression is decoded step-by-step as follows:

T @ S means T is the brother of S, which indicates T is male.

S # M means S is the son of M. Combined with the first relation, this implies both T and S are the sons of M.

M N means M is the wife of N, which makes N the husband of M and the father of T and S.

N G means N is the father of G.

Since N is the father of both T and G, and T is male, T is the brother of G.

Explanation

To find the number of letters whose positions remain unchanged, we compare the original word with its letters arranged in alphabetical order.

Original Word: S O U N D B A R

Sorted Word: A B D N O R S U

Comparing the letters at each position from left to right: First position: S and A (changed) Second position: O and B (changed) Third position: U and D (changed) Fourth position: N and N (unchanged) Fifth position: D and O (changed) Sixth position: B and R (changed) Seventh position: A and S (changed) Eighth position: R and U (changed)

Only the letter N remains in the same position (fourth position) after rearranging. Thus, the position of only one letter remains unchanged.

Explanation

The relationship in the given pair is that of a top boundary or upper inner surface to its corresponding enclosed space. The palate is the roof or upper surface of the mouth cavity. Similarly, a roof is the top covering or upper boundary of a room.

Explanation

For Conclusion I, the statements only restrict the relationship between anklets and pendants. There is no direct or indirect restriction established between rings and anklets. Therefore, a scenario can exist where the set of rings is entirely contained within the set of anklets, meaning all rings being anklets is a valid possibility.

For Conclusion II, we are given that some bangles are anklets, which means there is a guaranteed overlap between the set of bangles and the set of anklets. Since no anklet can be a pendant, the portion of bangles that overlaps with anklets can never be pendants. Consequently, it is impossible for all bangles to be pendants, which means all bangles can never be pendants.

Explanation

The numerical positions of letters in the alphabetical order are used to determine the pattern. For three of the letter-clusters, the difference between the positions of consecutive letters is +2 and +4 respectively.

Specifically, in PRV, the positions are P(16), R(18), and V(22) with differences 18 - 16 = 2 and 22 - 18 = 4. In GIM, the positions are G(7), I(9), and M(13) with differences 9 - 7 = 2 and 13 - 9 = 4. In HJN, the positions are H(8), J(10), and N(14) with differences 10 - 8 = 2 and 14 - 10 = 4.

The letter-cluster EGJ does not follow this pattern, as the positions are E(5), G(7), and J(10) with differences of 7 - 5 = 2 and 10 - 7 = 3.

Explanation

By substituting the mathematical operators where A represents division (÷), B represents multiplication (×), C represents addition (+), and D represents subtraction (-), the equation is written as:

32 × 4 - 116 ÷ 2 + 13

Applying the BODMAS rule, division is performed first: 116 ÷ 2 = 58

This simplifies the expression to: 32 × 4 - 58 + 13

Next, perform multiplication: 32 × 4 = 128

This simplifies the expression to: 128 - 58 + 13

Finally, perform addition and subtraction: 128 + 13 - 58 = 141 - 58 = 83

Explanation

The given relation follows the mathematical logic where the first number in each pair is the square of the second number. This can be represented by the formula:

x = y²

where x is the first number and y is the second number.

For the first pair: 529 = 23²

For the second pair: 324 = 18²

Following this same logical relation for the third pair where x = 625: y = √625 y = 25

Explanation

To find the code for the word 'missed', compare the two given statements and their corresponding codes.

In the sentence 'I missed breakfast' which is coded as 'nl zn kq', and the sentence 'train is missed' which is coded as 'zm kg nl', the only common word is 'missed'.

Comparing the two sets of codes, the only common code present in both is 'nl'. Therefore, the code for 'missed' is 'nl'.

Explanation

The pattern followed by the numbers in each set is (x, x², 2x²).

For the first set (5, 25, 50): First number = 5 Second number = 5² = 25 Third number = 25 × 2 = 50

For the second set (8, 64, 128): First number = 8 Second number = 8² = 64 Third number = 64 × 2 = 128

Following the same logic for the set (12, 144, 288): First number = 12 Second number = 12² = 144 Third number = 144 × 2 = 288

Explanation

By comparing the two coded words, we can identify the common letters and their corresponding digits.

The word MOAT contains the letters M, O, A, and T, and is coded as 8652. The word TRAM contains the letters T, R, A, and M, and is coded as 4256.

The letters M, A, and T are present in both words. The digits common to both codes 8652 and 4256 are 6, 5, and 2. This means the letters M, A, and T correspond to the digits 6, 5, and 2 in some order.

The only remaining letter in TRAM is R, and the only remaining digit in its code 4256 is 4. Therefore, the code for R is 4.

Explanation

The series is formed by adding successive odd numbers starting from 9 to each term.

22 - 13 = 9 33 - 22 = 11 46 - 33 = 13

Following this pattern, the next difference must be 15. Adding 15 to the current term yields: 46 + 15 = 61

We can verify this with the subsequent terms in the series: 61 + 17 = 78 78 + 19 = 97

Explanation

The relationship established in the given word-pair is between a country and its national fruit. The mango is officially recognized as the national fruit of India. Similarly, the kiwi is the national fruit of New Zealand, perfectly representing the same relationship.

Explanation

Comparing the two given sentences: In messages are encrypted which is written as tg gc mz, and are you coming which is written as ze fp mz, the only word common to both statements is are.

Similarly, the only code common to both coded expressions is mz. Therefore, the code for are is mz.

Explanation

Since all rings are earrings, and some rings are chains, it logically follows that those rings which are chains must also be earrings. Therefore, some chains are earrings, which makes conclusion III correct.

Since some rings are chains, and all chains are bangles, the rings that are chains must also be bangles. Therefore, some rings are bangles, which makes conclusion I correct.

Since some rings are bangles, and all rings are earrings, those rings that are bangles must also be earrings. Therefore, some earrings are bangles, which makes conclusion II correct.

Thus, all three conclusions I, II and III logically follow from the given statements.

Explanation

Let the three numbers in each set be represented as (x, y, z). The relationship between the numbers in each set follows the pattern:

2x + y = z

Applying this pattern to the first given set (21, 34, 76): 2 × 21 + 34 = 42 + 34 = 76

Applying this pattern to the second given set (39, 26, 104): 2 × 39 + 26 = 78 + 26 = 104

Now, applying this logic to the set (28, 23, 79): 2 × 28 + 23 = 56 + 23 = 79

Explanation

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

Group 1: K J _ H Group 2: I J K _ Group 3: _ J M _ Group 4: E J _ K

Let us analyze the position-wise pattern across all four groups:

The second letter in every group is constant: J, J, J, J.

The third letter in each group increases by two positions in alphabetical order: Group 1 third letter: I Group 2 third letter: K Group 3 third letter: M Group 4 third letter: O

This gives us the first letter of our blank combination as I (filling the third position of Group 1) and the last letter of our blank combination as O (filling the third position of Group 4).

Among the options, only IGIJO starts with I and ends with O, making it the correct combination.

Explanation

To find the day of the week on 13 October 2009 starting from 15 December 2006:

First, calculate the day of the week on 15 December 2009. From 15 December 2006 to 15 December 2009, the number of years is 3. Among these, 2008 is a leap year (containing 29 February), while 2007 and 2009 are ordinary years. An ordinary year contributes 1 odd day and a leap year contributes 2 odd days. Total odd days = 1 (for 2007) + 2 (for 2008) + 1 (for 2009) = 4 odd days. Adding 4 days to Friday (15 December 2006) gives Tuesday. Thus, 15 December 2009 is a Tuesday.

Next, calculate the number of days between 13 October 2009 and 15 December 2009. Number of days in October after the 13th = 31 - 13 = 18 days Number of days in November = 30 days Number of days in December up to the 15th = 15 days Total days = 18 + 30 + 15 = 63 days.

Dividing 63 by 7 gives a remainder of 0 odd days (63 ÷ 7 = 9 weeks and 0 days). Since there are 0 odd days, 13 October 2009 falls on the exact same day of the week as 15 December 2009, which is Tuesday.

Explanation

To find the day of the week on 26 January 2007, we calculate the number of odd days between 23 January 2002 and 26 January 2007.

The number of years between 23 January 2002 and 23 January 2007 is 5 years. Within this period, 2004 is a leap year, while 2002, 2003, 2005, and 2006 are ordinary years.

Since an ordinary year has 1 odd day and a leap year has 2 odd days, the odd days from the years are calculated as: (4 × 1) + (1 × 2) = 6 odd days

The number of days between 23 January 2007 and 26 January 2007 is 3 days.

The total number of odd days is 6 + 3 = 9 days. Dividing 9 by 7 leaves a remainder of 2 odd days.

Adding 2 days to Wednesday gives Friday.

Explanation

By decoding the letter symbols to their respective mathematical operators: A represents ÷ B represents × C represents + D represents -

Substituting these operators into the given equation: 16 B 8 D 51 A 3 C 57

We get the expression: 16 × 8 - 51 ÷ 3 + 57

Applying the BODMAS rule, we first perform the division: 51 ÷ 3 = 17

Next, we perform the multiplication: 16 × 8 = 128

Substituting these results back into the expression: 128 - 17 + 57

Performing the remaining addition and subtraction from left to right: 128 - 17 + 57 = 111 + 57 = 168

Explanation

The standard alphabetical positions of the letters in the clusters RUX, NQT, and BEH have a constant difference of +3 between successive letters. For example, R (18) to U (21) to X (24) is +3 and +3; N (14) to Q (17) to T (20) is +3 and +3; B (2) to E (5) to H (8) is +3 and +3. In contrast, the letter cluster KMP has alphabetical positions K (11), M (13), and P (16), which have differences of +2 and +3, making it the odd one out.

Explanation

To find the code for the word dirty, we compare the two given statements and their corresponding codes:

First statement: hands are dirty is coded as ca bx vp Second statement: dirty things flies is coded as by vp cb

The only word common to both statements is dirty, and the only code common to both coded statements is vp. Therefore, the word dirty is represented by the code vp.

Explanation

The relationship between the given numbers is based on the squaring formula:

y = x²

For the first pair: 11² = 121

For the second pair: 21² = 441

Applying the same mathematical logic to 31: 31² = 961

Explanation

To find the day of the week on 29 November 2018 from 26 November 2013:

First, calculate the number of odd days between 26 November 2013 and 26 November 2018. Number of years = 2018 - 2013 = 5 years. Within this period, the year 2016 is a leap year, which contains 2 odd days, while the other 4 years are ordinary years containing 1 odd day each. Total odd days = (4 × 1) + (1 × 2) = 6 odd days.

Adding 6 odd days to Tuesday (26 November 2013) gives Monday. Therefore, 26 November 2018 was Monday.

To find the day on 29 November 2018, add the remaining 3 days (29 - 26 = 3) to Monday: Monday + 3 days = Thursday.

Explanation

Each letter in the consecutive terms of the series increases by a step of +3 in the English alphabetical order.

For the first letter of each group: M (13) + 3 = P (16) P (16) + 3 = S (19) S (19) + 3 = V (22) V (22) + 3 = Y (25)

For the second letter of each group: K (11) + 3 = N (14) N (14) + 3 = Q (17) Q (17) + 3 = T (20) T (20) + 3 = W (23)

For the third letter of each group: H (8) + 3 = K (11) K (11) + 3 = N (14) N (14) + 3 = Q (17) Q (17) + 3 = T (20)

Combining these letters, the next term in the series is YWT.

Explanation

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

For Conclusion I, we are given that all space is wind and some wind is earth. This does not provide any definite relationship between earth and space, meaning we cannot conclude that all earth is space.

For Conclusion II, the statements show that some wind is earth and some fire is earth. Because wind and fire both connect to earth independently, there is no necessary intersection between wind and fire, so we cannot conclude that some wind is fire.

Explanation

To find how Z is related to W from the expression Z × Y + X - V + W, we decode the relationships step-by-step from right to left, using the given definitions:

V + W means V is the mother of W.

X - V means X is the sister of V. Since V is the mother of W, X is the sister of W's mother.

Y + X means Y is the son of X. Since X is the sister of W's mother, Y is the son of W's mother's sister.

Z × Y means Z is the wife of Y. Since Y is the son of W's mother's sister, Z is the wife of W's mother's sister's son.

Thus, Z is W's mother's sister's son's wife.

Explanation

Each letter in the first term is shifted backward by 8 positions in the English alphabetical order, wrapping around the alphabet from Z to A where necessary, to obtain the corresponding letter in the second term.

Applying this pattern to the first pair AQLZ to SIDR: A (1) - 8 = -7 ≡ 19 (S) Q (17) - 8 = 9 (I) L (12) - 8 = 4 (D) Z (26) - 8 = 18 (R)

Applying this pattern to the second pair CPDV to UHVN: C (3) - 8 = -5 ≡ 21 (U) P (16) - 8 = 8 (H) D (4) - 8 = -4 ≡ 22 (V) V (22) - 8 = 14 (N)

Using the same logic for EBRY: E (5) - 8 = -3 ≡ 23 (W) B (2) - 8 = -6 ≡ 20 (T) R (18) - 8 = 10 (J) Y (25) - 8 = 17 (Q)

This gives the sequence WTJQ.

Explanation

The relationship among the numbers in the given sets is defined by the formula where the third number is obtained by subtracting 10 from the product of the first two numbers:

Third number = (First number × Second number) - 10

Applying this relationship to the given sets: (3, 12, 26) follows 3 × 12 - 10 = 36 - 10 = 26 (7, 9, 53) follows 7 × 9 - 10 = 63 - 10 = 53

For the set (7, 5, 25): 7 × 5 - 10 = 35 - 10 = 25

Explanation

The given series follows a pattern where the difference between consecutive terms increases by 2.

The differences between the consecutive numbers are: 79 - 77 = 2 83 - 79 = 4 89 - 83 = 6 97 - 89 = 8

Following this pattern of consecutive even integers, the next difference must be 10.

The next term in the series is calculated by adding 10 to the last term: 97 + 10 = 107

Explanation

The letters of the second word in each pair are obtained by shifting each corresponding letter of the first word forward by 5 positions in the alphabetical order.

For the first pair, FJK : KOP: F + 5 = K (6 + 5 = 11) J + 5 = O (10 + 5 = 15) K + 5 = P (11 + 5 = 16)

For the second pair, MQR : RVW: M + 5 = R (13 + 5 = 18) Q + 5 = V (17 + 5 = 22) R + 5 = W (18 + 5 = 23)

Following this same pattern, the pair JMP : ORU is correct because: J + 5 = O (10 + 5 = 15) M + 5 = R (13 + 5 = 18) P + 5 = U (16 + 5 = 21)

Explanation

The relationship between the words in the given pair, Continue and Interrupt, is that they are antonyms. Similarly, Attic and Common are antonyms. In literary and stylistic contexts, Attic refers to a style that is highly refined, elegant, classical, and pure, whereas Common refers to that which is vulgar, ordinary, or unrefined.

Explanation

By replacing the plus sign inside the parentheses with a division sign, the equation is written as 17 × 7 + (21 ÷ 3) × 5 - 28 + 34 = 72.

Interchanging the numbers 7 and 3 in this equation gives: 17 × 3 + (21 ÷ 7) × 5 - 28 + 34

Applying the BODMAS rule: First, solve the bracket: 21 ÷ 7 = 3

Next, perform the multiplication operations: 17 × 3 = 51 3 × 5 = 15

Now, substitute these values back into the expression: 51 + 15 - 28 + 34

Perform addition and subtraction: 66 - 28 + 34 = 38 + 34 = 72

Since LHS = RHS, the equation is correct.

Explanation

Analyze the alphabetical position of each letter in the series to identify the pattern:

First letter: U (21) → V (22) → W (23) → X (24) → Y (25), which increases by 1 each time. The missing first letter is W.

Second letter: T (20) → R (18) → P (16) → N (14) → L (12), which decreases by 2 each time. The missing second letter is P.

Third letter: H (8) → K (11) → N (14) → Q (17) → T (20), which increases by 3 each time. The missing third letter is N.

Fourth letter: S (19) → O (15) → K (11) → G (7) → C (3), which decreases by 4 each time. The missing fourth letter is K.

Combining these patterns yields the cluster WPNK.

Explanation

The given sequence increases by consecutive odd numbers starting from 11.

The differences between successive terms are: 88 - 77 = 11 101 - 88 = 13 116 - 101 = 15

Following this pattern, the next difference must be 17.

The missing term is calculated by adding 17 to the last term: 116 + 17 = 133

Explanation

Replacing the letters with their respective mathematical operators: A stands for + C stands for - E stands for ÷ U stands for ×

Substitute these operators into the given equation: 16 + 24 - 30 ÷ 15 × 9

According to the BODMAS rule, perform division first: 30 ÷ 15 = 2 The equation becomes: 16 + 24 - 2 × 9

Next, perform multiplication: 2 × 9 = 18 The equation becomes: 16 + 24 - 18

Finally, perform addition and subtraction: 16 + 24 = 40 40 - 18 = 22

Explanation

The relationship in the given pair is based on anatomy, where the wrist is the joint that directly connects the hand to the arm. Similarly, the ankle is the joint that directly connects the foot to the leg, representing the exact same anatomical relationship between a limb extremity and its adjacent joint.

Explanation

Replacing the symbols according to the rules where + and ÷ are interchanged, and × and - are interchanged:

Original equation: 21 + 3 - 7 ÷ 11 × 4

Interchanging the signs: 21 ÷ 3 × 7 + 11 - 4

Applying the BODMAS rule:

First, perform division: 21 ÷ 3 = 7

Next, perform multiplication: 7 × 7 = 49

Now, perform addition and subtraction: 49 + 11 - 4 = 56

Explanation

The letter-cluster QNL has letter positions of Q = 17, N = 14, and L = 12. The difference between successive letters is -3 (17 to 14) and -2 (14 to 12). All other letter-clusters in the group follow a consistent pattern of decreasing by 3 at each step, representing a uniform difference of -3 and -3 between consecutive letters. This makes QNL the odd one out.

Explanation

The logic of the relationship is to multiply the first number by 5 to get the second number. This can be expressed by the formula:

Second number = First number × 5

Applying this rule to the given pairs: 11 × 5 = 55 22 × 5 = 110

Following the same logic for 44: 44 × 5 = 220

Explanation

The given series follows an addition pattern where the difference between consecutive terms increases by 1 each time.

Let's calculate the differences between consecutive terms: 58.7 - 54 = 4.7 64.4 - 58.7 = 5.7 71.1 - 64.4 = 6.7 78.8 - 71.1 = 7.7

The differences form an arithmetic sequence with a common difference of 1: 4.7, 5.7, 6.7, 7.7.

Following this pattern, the next difference in the sequence must be: 7.7 + 1.0 = 8.7

To find the missing term, we add this difference to the last known term: 78.8 + 8.7 = 87.5

Explanation

In the expression M - N + O, 'M - N' means M is the wife of N, which makes N the husband (male). 'N + O' means N is the father of O. Since M is married to N and N is the father of O, M must be the mother of O.

Explanation

Correct Answer: B

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

The common difference (d) between consecutive terms is: 167 - 162 = 5 172 - 167 = 5 177 - 172 = 5 182 - 177 = 5

Since the common difference is consistently 5, the next term in the series is calculated by adding 5 to the last given term: 182 + 5 = 187

Explanation

Due to a character rendering error in the question text, the mathematical operator symbols for division ÷, addition +, and subtraction - are represented as i, while the multiplication symbol × is represented as x.

The correct operator mappings are: W stands for ÷ Y stands for × Z stands for + A stands for -

Substituting these operators into the given expression: 11 W 11 Y 11 Z 11 A 11 = 11 ÷ 11 × 11 + 11 - 11

Applying the BODMAS rule: First, perform the division: 11 ÷ 11 = 1 The expression becomes: 1 × 11 + 11 - 11

Next, perform the multiplication: 1 × 11 = 11 The expression becomes: 11 + 11 - 11

Next, perform the addition: 11 + 11 = 22 The expression becomes: 22 - 11

Finally, perform the subtraction: 22 - 11 = 11

Explanation

To determine how many letters remain in the same position, we compare the original word with its letters arranged in alphabetical order.

Original Word: F L A M I N G O E S

Alphabetical Order: A E F G I L M N O S

Comparing the letters at each position: 1st: F and A (changed) 2nd: L and E (changed) 3rd: A and F (changed) 4th: M and G (changed) 5th: I and I (unchanged) 6th: N and L (changed) 7th: G and M (changed) 8th: O and N (changed) 9th: E and O (changed) 10th: S and S (unchanged)

The letters I at the 5th position and S at the 10th position remain unchanged. This gives a total of two letters.

Explanation

By comparing the two coded sentences: cold summers day is coded as kl bn ix day and night is coded as kj ed bn

The only common word in both sentences is day, and the only common code in both coded representations is bn. Therefore, the code for day is bn.

Explanation

By converting the letters to their numerical positions in alphabetical order where A = 1 and Z = 26, the pattern for each letter position is as follows:

First letter: Add 7 to the position of the previous first letter. G (7) + 7 = N (14) N (14) + 7 = U (21) U (21) + 7 = B (28, which is 2) B (2) + 7 = I (9)

Second letter: Subtract 6 from the position of the previous second letter. O (15) - 6 = I (9) I (9) - 6 = C (3) C (3) - 6 = W (23) W (23) - 6 = Q (17)

Third letter: Add 5 to the position of the previous third letter. W (23) + 5 = B (28, which is 2) B (2) + 5 = G (7) G (7) + 5 = L (12) L (12) + 5 = Q (17)

Combining the resulting letters I, Q, and Q gives the next term in the series as IQQ.

Explanation

By Statement 2, all cushions are contained within the set of sheets. Statement 3 establishes that there is no overlap between the set of sheets and the set of blankets. Since the entire set of cushions lies inside the set of sheets, and sheets have no common elements with blankets, it is impossible for any cushion to be a blanket. This makes Conclusion I logically true. Statement 1 and Statement 2 allow the set of pillows and the set of sheets to be completely disjoint, meaning Conclusion II does not necessarily follow.

Explanation

To find the day of the week on 25 September 2018 starting from 6 May 2005, the total number of odd days between the two dates is calculated.

First, calculate the odd days from 6 May 2005 to 6 May 2018: Years difference = 2018 - 2005 = 13 years. Number of leap years in this interval (2008, 2012, 2016) = 3. Odd days from years = (years difference + leap years) mod 7 = (13 + 3) mod 7 = 16 mod 7 = 2 odd days.

Next, calculate the odd days from 6 May 2018 to 25 September 2018: May: 25 days (31 - 6) June: 30 days July: 31 days August: 31 days September: 25 days Total days = 25 + 30 + 31 + 31 + 25 = 142 days. Odd days from days = 142 mod 7 = 2 odd days.

Total odd days = 2 + 2 = 4 odd days.

Adding 4 days to Friday: Friday + 4 days = Tuesday.