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

Explanation

The terms in the series follow a sequential pattern where the digit 3 is repeatedly inserted between the prefix 12 and the suffix 6.

With each subsequent term, the number of 3s increases by exactly one: First term: 126 (zero 3s) Second term: 1236 (one 3) Third term: 12336 (two 3s) Fourth term: 123336 (three 3s) Fifth term: 1233336 (four 3s)

Following this pattern, the next term must contain five 3s between 12 and 6, which gives 12333336.

Explanation

The relationship between the words in the given pair, Smart and Intelligent, is synonymy, as both words share a similar meaning of having or showing quick learning and cleverness. In contrast, Nimble and Sluggish are antonyms, where nimble means quick and light in movement, and sluggish means slow-moving or lacking energy.

Explanation

The relationship between the letter groups is based on an increasing sequential increment in the alphabetical positions of each letter, specifically +1, +2, +3, and +4.

Applying this pattern to EHJL to get FJMP: E (5) + 1 = F (6) H (8) + 2 = J (10) J (10) + 3 = M (13) L (12) + 4 = P (16)

Similarly, applying this to BEGI to get CGJM: B (2) + 1 = C (3) E (5) + 2 = G (7) G (7) + 3 = J (10) I (9) + 4 = M (13)

Following the same logic for DGIK: D (4) + 1 = E (5) G (7) + 2 = I (9) I (9) + 3 = L (12) K (11) + 4 = O (15)

This gives the letter sequence EILO.

Explanation

Comparing the two coded sentences: Sentence 1: 'if you are' is coded as 'go so lu' Sentence 2: 'where are you' is coded as 'so lu ga'

Both sentences share the words 'you' and 'are'. Correspondingly, their code representations share 'so' and 'lu'. This means the combination 'you are' is represented by 'so lu'.

By eliminating the common words and codes, the only remaining word in Sentence 2 is 'where', and the only remaining code in its representation is 'ga'. Therefore, the code for 'where' is 'ga'.

Explanation

The number of years between 19 February 2014 and 19 February 2022 is 2022 - 2014 = 8 years.

Each ordinary year contributes 1 odd day, while each leap year contributes 2 odd days. This means every year contributes at least 1 odd day, with an additional odd day for each leap year.

The leap years in this interval are 2016 and 2020, which is a total of 2 leap years.

Total odd days = 8 + 2 = 10 odd days.

Dividing 10 by 7 gives a remainder of 3 odd days. Adding 3 days to Wednesday yields Thursday, Friday, and finally Saturday.

Explanation

Substituting the operators C as ÷, A as +, B as ×, and D as - in the expression: 222 C 2 A 7 B 3 D 11

We get: 222 ÷ 2 + 7 × 3 - 11

According to the BODMAS rule, division is performed first: 222 ÷ 2 = 111

Next, multiplication is performed: 7 × 3 = 21

Substituting these values back into the expression: 111 + 21 - 11

Finally, performing addition and subtraction: 132 - 11 = 121

Explanation

The given series follows a specific pattern of decreasing alphabetical positions for each corresponding letter in the terms.

For the first letter of each term: A (27) to X (24) to U (21) to R (18) represents a constant decrease of 3. Subtracting 3 from 18 gives 15, which corresponds to O.

For the second letter of each term: E (5) to A (27) to W (23) to S (19) represents a constant decrease of 4. Subtracting 4 from 19 gives 15, which corresponds to O.

For the third letter of each term: O (15) to M (13) to K (11) to I (9) represents a constant decrease of 2. Subtracting 2 from 9 gives 7, which corresponds to G.

Combining these letters yields OOG.

Explanation

The given series is an alternating series consisting of two separate arithmetic sequences.

The odd-positioned terms form the first sequence: 86, 105, 124, 143. Each term in this sequence is obtained by adding 19 to the previous term. 86 + 19 = 105 105 + 19 = 124 124 + 19 = 143

The even-positioned terms form the second sequence: 129, 118, 107, 96. Each term in this sequence is obtained by subtracting 11 from the previous term. 129 - 11 = 118 118 - 11 = 107 107 - 11 = 96

The missing number is the ninth term of the overall series, which corresponds to the next term in the first sequence. 143 + 19 = 162

Explanation

Interchanging the numbers 4 and 3 in the given equation: 29 + 46 - (48 ÷ 4) + (7 × 3) - 26 = 61

Replacing 4 with 3 and 3 with 4 yields the following expression: 29 + 46 - (48 ÷ 3) + (7 × 4) - 26

Applying BODMAS rules, solve the operations inside the brackets first: 48 ÷ 3 = 16 7 × 4 = 28

Substitute these values back into the equation: 29 + 46 - 16 + 28 - 26

Perform the remaining addition and subtraction operations from left to right: 75 - 16 + 28 - 26 = 59 + 28 - 26 = 87 - 26 = 61

This satisfies the equation as the left-hand side equals the right-hand side.

Explanation

The relationship between the numbers in each set follows the mathematical formula:

First number = Second number × Third number

For the first given set (120, 8, 15): 8 × 15 = 120

For the second given set (144, 24, 6): 24 × 6 = 144

Applying this same relationship to the set (115, 23, 5): 23 × 5 = 115

Explanation

The series follows a specific mathematical pattern for each of the three positions of the letter groups, based on their alphabetical ranks from 1 to 26:

For the first letter of each group, the ranks increase by 2: J (10) + 2 = L (12) L (12) + 2 = N (14) N (14) + 2 = P (16) P (16) + 2 = R (18) R (18) + 2 = T (20)

For the second letter of each group, the ranks decrease by 3: K (11) - 3 = H (8) H (8) - 3 = E (5) E (5) - 3 = B (2) B (2) - 3 = Y (25) Y (25) - 3 = V (22)

For the third letter of each group, the ranks increase by 4 (mod 26): L (12) + 4 = P (16) P (16) + 4 = T (20) T (20) + 4 = X (24) X (24) + 4 = B (2) B (2) + 4 = F (6)

Combining these positions gives the letters P, B, and X.

Explanation

By comparing the two given coded statements: future is bright is coded as pl mk ni bright shooting star is coded as dg rz pl

The word bright is the only common word in both statements. Correspondingly, the code pl is the only common code present in both coded representations. Therefore, the word bright is coded as pl.

Explanation

The relationship between the numbers in each pair is defined by dividing the first number by 11 to obtain the second number.

For the first pair: 242 ÷ 11 = 22

For the second pair: 385 ÷ 11 = 35

Applying the same logic to the third pair: 572 ÷ 11 = 52

Explanation

The statement that no cloud is a mountain means there is no intersection between clouds and mountains. Since all mountains are rivers, the portion of rivers that are mountains can never be clouds. Because this specific subset of rivers can never belong to the cloud set, it is impossible for the entire set of rivers to be clouds. Therefore, conclusion I follows.

Furthermore, we are given that all mountains are rivers and all rivers are oceans. Since the set of mountains is entirely contained within the set of rivers, and the set of rivers is entirely contained within the set of oceans, it directly follows that all mountains are contained within the set of oceans. Therefore, conclusion II also follows.

Explanation

The letter-cluster OPMK is the odd one out because it does not follow the pattern of alternating opposite pairs. In a standard alphabetical position system where the sum of positions of opposite letters is 27, the first and third letters of the other clusters are opposites, and the second and fourth letters are also opposites. For OPMK, the first letter O (15) and the third letter M (13) do not sum to 27, meaning they are not opposites. The opposite of O is L, not M, making this cluster different from the rest.

Explanation

From the expression M N @ O # P Q, we can decode the relations step-by-step:

M N means M is the daughter of N.

N @ O means N is the husband of O. This means N and O are a married couple, making N the father and O the mother of M.

O # P means O is the mother of P. Since O is the mother of both M and P, they are siblings.

P Q means P is the brother of Q. This establishes that P is male.

Since M and P are children of the same parents (N and O) and P is male, P is the brother of M.

Explanation

The relation between the three numbers (a, b, c) in each set follows the pattern:

b = 2 × a c = 6 × b

Applying this pattern to the given sets:

For (6, 12, 72): 12 = 2 × 6 72 = 6 × 12

For (8, 16, 96): 16 = 2 × 8 96 = 6 × 16

Similarly, for the set in Option C: 24 = 2 × 12 144 = 6 × 24

Explanation

The word "time" is the only common word between the two phrases "time and again" and "value your time". Similarly, "df" is the only common code between the two corresponding coded sequences "zx df mo" and "df pn tv". Therefore, the word "time" is coded as "df".

Explanation

By comparing the letter sets of the two coded words, BACK contains the letters B, A, C, and K, while CAB contains B, A, and C. The common letters between both words are B, A, and C. Similarly, the common digits in their respective codes, 4162 and 214, are 2, 1, and 4. This leaves the letter K in BACK and the digit 6 in 4162 as the only unmatched elements. Thus, the code for K is 6.

Explanation

The relationship in the given pair is that of a professional and their primary venue of authority or workplace. A referee is an official who supervises a game and enforces the rules, operating on a sports field. Similarly, a judge is a public officer who presides over legal proceedings and administers justice, operating within a courtroom.

Explanation

The pattern of the given series is based on adding the squares of consecutive odd numbers to each preceding term.

112 + 1² = 112 + 1 = 113 113 + 3² = 113 + 9 = 122 122 + 5² = 122 + 25 = 147 147 + 7² = 147 + 49 = 196

Following this pattern, the next term is obtained by adding the square of 9 (9² = 81) to the last term:

196 + 9² = 196 + 81 = 277

Explanation

Applying the given interchanges where - and + are interchanged (- ↔ +), and × and ÷ are interchanged (× ↔ ÷):

The original expression: 14 - 15 ÷ 2 + 56 × 14

After interchanging the operators, the expression becomes: 14 + 15 × 2 - 56 ÷ 14

Using the BODMAS rule, we perform division and multiplication first: 56 ÷ 14 = 4 15 × 2 = 30

Now, substitute these values back into the expression: 14 + 30 - 4

Next, perform the addition: 14 + 30 = 44

Finally, perform the subtraction: 44 - 4 = 40

Explanation

Each letter in the consecutive terms of the series increases by a constant difference of +3 in its alphabetical position.

For the first letter of each term: C (3) → F (6) → I (9) → L (12) → O (15) For the second letter of each term: E (5) → H (8) → K (11) → N (14) → Q (17) For the third letter of each term: G (7) → J (10) → M (13) → P (16) → S (19)

Applying this rule to the last term LNP, we get: L (12) + 3 = O (15) N (14) + 3 = Q (17) P (16) + 3 = S (19)

This gives the next term as OQS.

Explanation

In the alphabetical series, the position values of the letters in TVY are T = 20, V = 22, and Y = 25. The differences between consecutive letters in this cluster are +2 and +3. This pattern differs from the constant difference of +2 between consecutive letters that defines the other clusters in the group.

Explanation

The given series follows the recursive pattern where each term is obtained by doubling the preceding term and adding 1. This can be expressed by the formula tₙ = 2 × tₙ₋₁ + 1.

Applying this rule to the last known term: 63 × 2 + 1 = 126 + 1 = 127

Alternatively, the terms can also be expressed by the general formula tₙ = 2ⁿ⁺¹ - 1 for the n-th term. For the sixth term where n = 6: t₆ = 2⁷ - 1 = 128 - 1 = 127

Explanation

In the relationship definitions, the symbol + denotes father and ÷ (which appears as the second + in the expression) denotes daughter.

Analyzing the expression S + T ÷ U: S + T indicates that S is the father of T, meaning S is male. T ÷ U indicates that T is the daughter of U.

Since T is the daughter of both S and U, S and U must be married. Since S is male, U is female, which makes S the husband of U.

Explanation

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

For Conclusion I, we are given that some jackets are pullovers and no pullover is a glove. This implies that the jackets which are pullovers cannot be gloves. However, we cannot definitively conclude that no jacket is a glove, as the jackets that are not pullovers could still potentially be gloves. Thus, Conclusion I does not logically follow.

For Conclusion II, we are told that some sweaters are jackets and some jackets are pullovers. Since there is no direct connection established between sweaters and pullovers, we cannot assert that some sweaters are pullovers. Thus, Conclusion II does not logically follow.

Since neither Conclusion I nor Conclusion II logically follows, none of the conclusions follow.

Explanation

The relation between the letter groups is based on a forward shift of one position (+1) for each letter in the English alphabetical order.

Applying this pattern to the second pair GILN and HjMO: G + 1 = H I + 1 = J L + 1 = M N + 1 = O

Following the same logic for MORT: M + 1 = N O + 1 = P R + 1 = S T + 1 = U

This gives the combination NPSU.

Explanation

Let today be represented as T.

According to the first condition, 10 days before today was a Sunday: T - 10 = Sunday T = Sunday + 10 days Since 10 days is equal to 1 week and 3 days, we add 3 days to Sunday: Sunday + 3 days = Wednesday

According to the second condition, 6 days after today will be a Tuesday: T + 6 = Tuesday T = Tuesday - 6 days Subtracting 6 days is equivalent to adding 1 day (since 7 - 6 = 1): Tuesday - 6 days = Wednesday

Both conditions consistently show that today is Wednesday.

Explanation

The coding pattern represents the square of the total number of letters in the given word.

For the word DIVERT, there are 6 letters, so its code is 6² = 36.

For the word DOLDRUMS, there are 8 letters, so its code is 8² = 64.

Following the same logic for the word DOGMA, which has 5 letters, the code is 5² = 25.

Explanation

To find the day of the week on 23 June 2020 starting from 23 June 2008, calculate the total number of odd days in the 12-year interval.

An ordinary year has 365 days, which leaves a remainder of 1 odd day when divided by 7. A leap year has 366 days, which leaves a remainder of 2 odd days.

Between 23 June 2008 and 23 June 2020, the leap years that include the extra day of 29 February are 2012, 2016, and 2020. The leap day of 2008 is not counted because 23 June 2008 is past February. This gives 3 leap years and 9 ordinary years.

Total odd days = (9 × 1) + (3 × 2) = 15 odd days

Dividing 15 by 7 leaves a remainder of 1 odd day. Adding 1 day to Monday results in Tuesday.

Explanation

By analyzing the equation, the letters represent the standard mathematical operators as follows: A represents ÷ B represents × C represents + D represents -

Substituting these operators into the given expression: 14 × 11 - 22 + 328 ÷ 8

Applying the BODMAS rule, perform the division first: 328 ÷ 8 = 41

Next, perform the multiplication: 14 × 11 = 154

Finally, perform the addition and subtraction: 154 - 22 + 41 = 132 + 41 = 173

Explanation

The relationship in the given letter-cluster pairs is based on shifting each letter forward by 4 positions in alphabetical order.

In the first pair VPN : ZTR: V (22) + 4 = Z (26) P (16) + 4 = T (20) N (14) + 4 = R (18)

In the second pair SMK : WQO: S (19) + 4 = W (23) M (13) + 4 = Q (17) K (11) + 4 = O (15)

Applying the same rule to the pair LFD : PJH: L (12) + 4 = P (16) F (6) + 4 = J (10) D (4) + 4 = H (8)

Explanation

The relation between the numbers in each pair is that the first number is four times the second number. This can be expressed by the formula:

First Number = Second Number × 4

For the first pair: 23 × 4 = 92

For the second pair: 34 × 4 = 136

Applying the same mathematical logic to 224: Second Number = 224 ÷ 4 = 56

Explanation

The letters in each position of the terms follow a consistent mathematical progression in their alphabetical positions.

For the first letter of each term, the alphabetical positions decrease by 5: B (2) - 5 = W (23) W (23) - 5 = R (18) R (18) - 5 = M (13) M (13) - 5 = H (8)

For the second letter of each term, the alphabetical positions increase by 5: J (10) + 5 = O (15) O (15) + 5 = T (20) T (20) + 5 = Y (25) Y (25) + 5 = D (4)

For the third letter of each term, the alphabetical positions decrease by 5: R (18) - 5 = M (13) M (13) - 5 = H (8) H (8) - 5 = C (3) C (3) - 5 = X (24)

Combining these positions gives the missing term WOM.

Explanation

The given number series is formed by subtracting consecutively decreasing numbers that follow a specific pattern.

Let's calculate the differences between consecutive terms: 612 - 571 = 41 571 - 535 = 36 535 - 504 = 31 504 - 478 = 26

The differences between the successive numbers are 41, 36, 31, and 26. This sequence of differences decreases by 5 at each step.

Following this pattern, the next difference to be subtracted from 478 is: 26 - 5 = 21

Applying this to find the missing term: 478 - 21 = 457

Explanation

The given series follows an arithmetic progression with a constant difference of -9 between consecutive terms.

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

Following this same pattern, the next term in the series is calculated by subtracting 9 from the last given term:

119 - 9 = 110

Explanation

The statement "All trees are stones" implies that the set of trees is entirely contained within the set of stones. Consequently, there is an overlap between the two sets, meaning "Some stones are trees" is logically valid, so Conclusion I follows.

The statements "All houses are trees", "All trees are stones", and "All stones are rocks" create a sequential containment chain where the set of houses is inside trees, trees is inside stones, and stones is inside rocks. This transitive relationship establishes that the set of houses is entirely contained within the set of rocks, meaning "All houses are rocks" is logically valid, so Conclusion II follows.

Explanation

To find the number of letters that remain in the same position, we compare the original word with its alphabetically sorted version.

Original: D O C U M E N T A R Y Alphabetical: A C D E M N O R T U Y

Comparing each position from left to right: Position 5 has M in both the original word and the alphabetically sorted sequence. Position 11 has Y in both sequences.

All other letters change their positions. Thus, only two letters, M and Y, remain in their original positions.

Explanation

The general pattern for the letter-clusters in the group is that the position values of the letters increase consecutively by +1, +3, +5, and +7.

In HIMQX, the positions of the letters are H (8), I (9), M (13), Q (17), and X (24). The consecutive differences between these positions are 9 - 8 = +1, 13 - 9 = +4, 17 - 13 = +4, and 24 - 17 = +7. Since the differences are +1, +4, +4, and +7, this cluster does not follow the general pattern.

Explanation

Substituting the given operators into the expression in option B gives: 32 × 8 - 160 ÷ 2 + 42

Applying the BODMAS rule, perform division first: 160 ÷ 2 = 80

Next, perform multiplication: 32 × 8 = 256

Now, substitute these results back into the expression: 256 - 80 + 42

Finally, perform addition and subtraction from left to right: 176 + 42 = 218

Explanation

The relation expression is K × Q + R - S + L.

From K × Q, K is the husband of Q, which means K is male and Q is female.

From Q + R, Q is the mother of R. Since Q is married to K, K is the father of R.

From R - S, R is the brother of S. Since R and S are siblings, K is also the father of S.

From S + L, S is the father of L.

Since S is the father of L and K is the father of S, K is the father's father of L.

Explanation

The relationship in the given pair Flower - Petal is that of a whole to a part, where a petal is a constituent part of a flower. Similarly, in the pair Fruit - Seed, a seed is a constituent part of a fruit, maintaining the same whole-to-part relationship.

Explanation

The series is formed by applying a specific mathematical pattern to the alphabetical positions of the letters in each position of the clusters.

For the first letter of each cluster, there is a constant addition of 4 to the alphabetical position: A (1) + 4 = E (5) E (5) + 4 = I (9) I (9) + 4 = M (13) M (13) + 4 = Q (17)

For the second letter of each cluster, there is a constant subtraction of 4 from the alphabetical position, moving in a backward alphabetical cycle: F (6) - 4 = B (2) B (2) - 4 = X (24) X (24) - 4 = T (20) T (20) - 4 = P (16)

For the third letter of each cluster, there is a constant addition of 1 to the alphabetical position: K (11) + 1 = L (12) L (12) + 1 = M (13) M (13) + 1 = N (14) N (14) + 1 = O (15)

Combining these letters yields EBL.

Explanation

The relationship between the three numbers (a, b, c) in each set is defined by the formula: a² + b² = c

For the first given set (5, 4, 41): 5² + 4² = 25 + 16 = 41

For the second given set (7, 2, 53): 7² + 2² = 49 + 4 = 53

Applying this same relationship to the set (9, 3, 90): 9² + 3² = 81 + 9 = 90

Explanation

Comparing the two coded sentences: strength to innovate is coded as 42 64 32 strength to create is coded as 32 42 24

The common words in both sentences are strength and to. Correspondingly, the common codes in both sets are 32 and 42.

By eliminating these common elements, the remaining word in the second sentence is create, and the remaining code is 24. Therefore, the code for create is 24.

Explanation

When 15 and 19 are interchanged, the equation becomes: 19 × 5 - 75 + (300 ÷ 6) + 3 × 15 = 115

Applying the BODMAS rule: First, calculate the division inside the bracket: 300 ÷ 6 = 50

Next, perform the multiplication operations: 19 × 5 = 95 3 × 15 = 45

Now, substitute these results into the expression: 95 - 75 + 50 + 45

Simplify the addition and subtraction: 95 - 75 + 50 + 45 = 20 + 50 + 45 = 115

Explanation

When the letters of the word DETAIL are arranged in alphabetical order, the sequence becomes A, D, E, I, L, T. Comparing this to the original word, none of the letters remain in their original positions, so the correct answer is None.

Explanation

The given number series follows a simple arithmetic progression where each subsequent term is obtained by subtracting 9 from the preceding term.

268 - 9 = 259 259 - 9 = 250 250 - 9 = 241 241 - 9 = 232

Following this same constant difference of -9, the next term in the series is:

232 - 9 = 223

Explanation

Applying the interchange of mathematical signs where + and - are interchanged, and × and ÷ are interchanged:

The given equation is: 204 × 4 - 9 ÷ 2 + 6 = ?

Replacing the operators according to the rules: × is replaced by ÷

• is replaced by + ÷ is replaced by ×

• is replaced by -

The equation becomes: 204 ÷ 4 + 9 × 2 - 6 = ?

Following the BODMAS rule: First, perform the division: 204 ÷ 4 = 51

Next, perform the multiplication: 9 × 2 = 18

Now, perform the addition and subtraction: 51 + 18 - 6 = 63