SSC CHSL Tier 1 2016 General Intelligence & Reasoning Questions with Solutions

Explanation

By converting the alphabets to their respective positional values in the English alphabet, we have C = 3, M = 13, and P = 16. The relationship is based on the sum of the numerical values of the first two letters, which yields the value of the third letter: 3 + 13 = 16, representing P.

Applying this same logic to PM, we have P = 16 and M = 13. Adding these positional values gives 16 + 13 = 29. Since the English alphabet has 26 letters, we wrap around by subtracting 26 from the sum: 29 - 26 = 3. The letter at the 3rd position is C.

Explanation

The relationship between the letter pairs is established by multiplying the alphabetical position of each letter by 2, using a cycle of 26 letters.

Alphabetical positions of the letters in the first group are: J = 10 N = 14

Applying the pattern: 10 × 2 = 20, which is the position of T 14 × 2 = 28, and subtracting 26 for the alphabet cycle gives 2, which is the position of B Thus, JN corresponds to TB.

Applying the same pattern to PB: P = 16 B = 2

Applying the pattern: 16 × 2 = 32, and subtracting 26 for the alphabet cycle gives 6, which is the position of F 2 × 2 = 4, which is the position of D

This yields the letter pair FD.

Explanation

The relationship in the first pair of numbers follows the pattern n × (n + 1) = value, where n is the first number.

For the first pair: 7 × (7 + 1) = 7 × 8 = 56

Applying this same logic to the second pair: 9 × (9 + 1) = 9 × 10 = 90

Alternatively, the pattern can also be represented as n² + n: 7² + 7 = 49 + 7 = 56 9² + 9 = 81 + 9 = 90

Explanation

The banyan is a tropical angiosperm, which is a flowering and broad-leaved tree. Unlike the others, which are coniferous gymnosperms (non-flowering, needle-leaved evergreen trees), the banyan belongs to the family Moraceae and reproduces through flowers and fruits. This classification sets the banyan apart from the rest of the group.

Explanation

The numerical positions of the letters in the English alphabet are determined by assigning numbers from 1 to 26 starting from A to Z. For the letter pair VN, the position of V is 22 and the position of N is 14, yielding a difference of 22 - 14 = 8 between the two letters. For the remaining letter pairs, the difference between their respective alphabetical positions is consistently 6.

Explanation

For 2498, the product of the last two digits is 9 × 8 = 72, which does not equal the first two digits (24). In all other numbers, the product of the last two digits equals the first two digits: in 4267 we have 6 × 7 = 42, in 2739 we have 3 × 9 = 27, and in 5496 we have 9 × 6 = 54.

Explanation

The sum of the digits of 3469 is 22 (3 + 4 + 6 + 9 = 22), whereas the sum of the digits for each of the other three numbers is 20.

Explanation

The given series lists the major layers of Earth's atmosphere in sequential order moving outward from the surface. The troposphere is the innermost layer, which is succeeded by the stratosphere, and then the mesosphere. The next layer in this atmospheric progression, located directly above the mesosphere, is the thermosphere.

Explanation

The series follows a dual pattern where each term consists of two letters.

The first letter of each term increases by one position in alphabetical order: A → B → C → D

The second letter of each term decreases by one position in alphabetical order (working backward from the end of the alphabet): Z → Y → X → W

Combining these two patterns, the next term in the series is DW.

Explanation

The given series follows a simple sequential alphabetical pattern for both letters in each term.

In the first position of each term, the letters increase by one position in alphabetical order: D, E, F, and the next letter is G.

In the second position of each term, the letters also increase by one position in alphabetical order: M, N, O, and the next letter is P.

Combining the two letters gives GP.

Explanation

The given series follows a pattern where the difference between consecutive terms is halved at each successive step.

The difference between the first and second term is 159 - 79 = 80. The difference between the second and third term is 199 - 159 = 40. The difference between the third and fourth term is 219 - 199 = 20.

The differences are 80, 40, and 20. Halving the last difference of 20 gives 10. Adding this value to the fourth term yields the next number in the sequence:

219 + 10 = 229

Explanation

Conclusion I does not follow because there is no direct relationship established between polynomials and quadratic equations. Conclusion II does not follow because the statement only states that 'some' linear equations are quadratic, which cannot be generalized to mean all linear equations are quadratic.

Explanation

Let the age of B be x. Since the age of A is three times the age of B, the age of A is 3x.

The ratio of the age of B to the age of A is calculated as:

Age of B : Age of A = x : 3x = 1 : 3

Explanation

To arrange the words in alphabetical order as they appear in a dictionary, we compare the letters of each word from left to right.

All four words begin with the prefix Att. Comparing the fourth letter of each word, Attain (iii) has a, Attenuation (ii) and Attention (iv) have e, and Attribute (i) has r. Since a comes first alphabetically and r comes last, Attain (iii) must be first and Attribute (i) must be last in the sequence.

To determine the order between Attenuation (ii) and Attention (iv), we compare their sixth letters because their first five letters (Atten) are identical. The sixth letter of Attention (iv) is t, while the sixth letter of Attenuation (ii) is u. Since t comes before u in the alphabet, Attention (iv) precedes Attenuation (ii).

This gives the correct sequence: Attain (iii), Attention (iv), Attenuation (ii), Attribute (i).

Explanation

The coding pattern is obtained by reversing the letter order of the word and then adding 1 to both the first and last letters of this reversed string.

Applying this to FAILURE: Reversing FAILURE yields: E R U L I A F Add +1 to the first letter: E + 1 = F Add +1 to the last letter: F + 1 = G The middle letters remain unchanged: R U L I A This results in the coded word: F R U L I A G

Applying the same pattern to SUCCESS: Reversing SUCCESS yields: S S E C C U S Add +1 to the first letter: S + 1 = T Add +1 to the last letter: S + 1 = T The middle letters remain unchanged: S E C C U This results in the coded word: T S E C C U T

With the double C simplified to a single C in the options, this corresponds to TSECUT.

Explanation

The pattern in each column is that the top number is equal to the square of the middle number plus the cube of the bottom number.

For the second column: 7² + 4³ = 49 + 64 = 113

For the third column: 6² + 5³ = 36 + 125 = 161

Applying the same pattern to the first column: 2² + 3³ = 4 + 27 = 31

Explanation

According to the given specifications, the letter symbols represent mathematical operators as follows: B represents division (÷) C represents multiplication (×) A represents addition (+) D represents subtraction (-)

Substituting these operators into the given expression: 154 ÷ 11 × 6 + 6 - 27

Applying the BODMAS rule: First, perform the division: 154 ÷ 11 = 14

Next, perform the multiplication: 14 × 6 = 84

Next, perform the addition: 84 + 6 = 90

Finally, perform the subtraction: 90 - 27 = 63

Explanation

The given letter series is s_r_t_s_r. By placing the letters t, r, s, and t sequentially in the four gaps, we get the complete sequence:

s t r r t s s t r

When this sequence is divided into groups of three letters each, it forms a clear alternating pattern:

str / rts / str

In this pattern, the first group is str, the second group is its reverse rts, and the third group is str again. Thus, the letters that complete the series are t, r, s, t.

Explanation

The standard directions in clockwise order are North, East, South, and West, separated by 90° increments. If the compass shows the West direction as South, it means the direction markings on the compass have been shifted 90° counter-clockwise. Under this shift, standard West is shown as South, standard North is shown as West, standard East is shown as North, and standard South is shown as East. Since the man wishes to move towards the actual East direction, he must follow the direction marked as North on this compass.

Explanation

According to the rules of the matrix representation, each letter is identified first by its row number and then by its column number. To find the correct set of numbers for the word GAIN, each letter is mapped as follows:

For the letter G, row 7 and column 7 of Matrix-II intersect to give the code 77. For the letter A, row 2 and column 2 of Matrix-I intersect to give the code 22. For the letter I, row 6 and column 6 of Matrix-II intersect to give the code 66. For the letter N, row 4 and column 3 of Matrix-I intersect to give the code 43.

Combining these codes together yields 77, 22, 66, 43.

Explanation

Akhil is the maternal uncle of Rashmi, which means Akhil is the brother of Rashmi's mother. Since Rashmi is the daughter of Ramesh, Ramesh must be the father of Rashmi. Therefore, Ramesh is married to Akhil's sister. In family relations, the husband of one's sister is a brother-in-law, making Ramesh the brother-in-law of Akhil.

Explanation

The given relationship represents a physical quantity and its SI unit. Luminous intensity is a physical quantity whose SI unit is the candela. Similarly, pressure is a physical quantity whose SI unit is the pascal.

Explanation

The word APPARENT is divided into two equal halves of four letters each, APPA and RENT, which are then swapped in position to form RENTAPPA.

Applying the same pattern to the word MUSCULAR, it is divided into two equal halves of four letters each, MUSC and ULAR. Swapping these two halves results in ULARMUSC.

Explanation

The relationship is established by reversing the letters of the word and then shifting each letter forward by three positions in alphabetical order.

Reversing the word PEON gives NOEP. Shifting each letter of NOEP forward by three positions gives: N + 3 = Q O + 3 = R E + 3 = H P + 3 = S This yields the code QRHS.

Applying the same logic, reversing the word JOCK gives KCOJ. Shifting each letter of KCOJ forward by three positions gives: K + 3 = N C + 3 = F O + 3 = R J + 3 = M This yields the code NFRM.

Explanation

The relationship in the first pair is established by taking the first digit of the number as the base and raising it to the power of the second digit.

For 34: 3⁴ = 81

Applying the same logic to 23: 2³ = 8

Explanation

Malaria is a protozoal disease caused by the Plasmodium parasite, whereas the other diseases listed are all bacterial infections.

Explanation

The letters L and N have alphabetical positions of 12 and 14, respectively. The sum of their positions is 26. This pair does not consist of opposite letters of the alphabet, which always have positions that sum to 27.

Explanation

The number 8564 does not conform to the pattern of having the first digit followed by its cube. While the other options write a digit n followed by n³ (such as 5 followed by 125, 7 followed by 343, and 6 followed by 216), the cube of 8 is 512, which would yield 8512 instead of 8564.

Explanation

The number 529 is a perfect square of the prime number 23, since 23² = 529, whereas the other numbers are not perfect squares.

Explanation

The given series consists of Roman numeral symbols arranged in ascending order of their standard values. The symbol I represents 1, V represents 5, and L represents 50. In this sequence, the standard Roman numeral that follows V and precedes L is X, which represents the value 10.

Explanation

The series is formed by groups of three consecutive letters where the starting letter of each subsequent term increases by 6 positions in the alphabetical order.

The progression of the first letters of each term is: V (22nd letter) + 6 = B (2nd letter, wrapping around after Z) B (2nd letter) + 6 = H (8th letter) H (8th letter) + 6 = N (14th letter)

Since each term consists of three consecutive letters, the term starting with N is NOP.

Explanation

The series consists of pairs of consecutive letters. The pattern of the first letter of each pair is determined by an increasing numerical difference:

The alphabetical position of the first letter M is 13. The alphabetical position of the first letter P is 16, which is 13 + 3. The alphabetical position of the first letter T is 20, which is 16 + 4. The alphabetical position of the first letter Y is 25, which is 20 + 5.

Following this pattern of increasing differences (+3, +4, +5), the next difference must be +6. Adding 6 to the position of Y (25) yields 31. In the 26-letter alphabetical cycle, 31 corresponds to 5, which represents the letter E. Since each term consists of two consecutive letters, the letter immediately following E is F, forming the pair EF.

Explanation

The terms of the given series follow the mathematical pattern n³ + 2, starting with n = 2.

The first term is 2³ + 2 = 8 + 2 = 10. The second term is 3³ + 2 = 27 + 2 = 29. The third term is 4³ + 2 = 64 + 2 = 66. The fourth term is 5³ + 2 = 125 + 2 = 127.

Following this pattern, the fifth term is obtained by setting n = 6: 6³ + 2 = 216 + 2 = 218.

Explanation

From Statement I, we establish that the entire category of graduates is contained within the category of men. From Statement II, a specific individual, this thief, belongs to the category of graduates. Since this thief is a graduate, and every graduate is a man, this thief is necessarily a man, which validates Conclusion I. Furthermore, because this thief is a man, we have established the existence of at least one individual who is both a man and a thief. This confirms that the intersection of the set of men and the set of thieves is not empty, validating the existential statement that some men are thieves, which makes Conclusion II valid.

Explanation

The sum of the temperatures for the first six days is calculated by multiplying the average temperature of these six days by six: 41 × 6 = 246°C

The temperature on the sixth day is the difference between the total sum of the temperatures of all six days and the sum of the temperatures of the first five days: 246 - 201 = 45°C

Explanation

To arrange the words in alphabetical order as they appear in a dictionary, we compare their letters from left to right.

All four words start with the letter U. Comparing the second letter, m comes before n, which places Umbrella (iii) first in the sequence.

For the remaining words, Uniform, Unitary, and Unicorn, the first three letters Uni are identical. Comparing their fourth letters, c comes before f, and f comes before t. This orders the remaining words as Unicorn (iv), Uniform (i), and Unitary (ii).

Combining these positions gives the final alphabetical sequence as iii, iv, i, ii.

Explanation

Comparing the words and their codes shows a direct letter-to-digit mapping. In ARMS coded as 5467, the letters correspond to A = 5, R = 4, M = 6, and S = 7. Similarly, in LIAR coded as 1254, the letters correspond to L = 1, I = 2, A = 5, and R = 4. This mapping is consistent across both words. Using these values for the word SMALL, S is represented by 7, M is represented by 6, A is represented by 5, and each L is represented by 1. Combining these digits in order yields 76511.

Explanation

The logic followed in this matrix relates the numbers column-by-column. In each column, the sum of the numbers in the first and second rows is multiplied by 4 to obtain the number in the third row.

This can be represented as: (Row 1 + Row 2) × 4 = Row 3

Checking the pattern for Column 1: (15 + 6) × 4 = 21 × 4 = 84

Checking the pattern for Column 2: (30 + 8) × 4 = 38 × 4 = 152

Applying this logic to Column 3 to find the missing number: (20 + 5) × 4 = 25 × 4 = 100

Explanation

Substitute the symbols with their corresponding mathematical operators: " | " represents division (÷) "#" represents subtraction (-) "@" represents addition (+) "%" represents multiplication (×)

The given expression is: 505 | 5 # 4 @ 20 % 5

Replacing the symbols yields: 505 ÷ 5 - 4 + 20 × 5

Applying the BODMAS rule, perform the division first: 505 ÷ 5 = 101

Next, perform the multiplication: 20 × 5 = 100

Now substitute these values back into the expression: 101 - 4 + 100

Finally, perform the addition and subtraction: 101 + 100 - 4 = 201 - 4 = 197

Explanation

The given letter series consists of 12 terms. Sequentially placing the letters N, M, O, and N into the gaps completes the series as MNNOMNNOMNNO. This forms a continuous, repeating pattern of the four-letter block MNNO repeating three times: MNNO, MNNO, MNNO.

Explanation

Let the position of Amar be the reference point. Since Sonal is standing to the north of Amar, Sonal is directly above Amar. Sonal is also to the west of Mahi, which means Mahi is standing directly to the east of Sonal.

Combining these positions, Mahi is situated both to the north and to the east of Amar. Therefore, Mahi is standing in the North-East direction with respect to Amar.

Explanation

The word LION can be decoded using the row and column numbers from the two matrices.

The letter L is located at row 4 and column 4 in Matrix-I, which gives the representation 44.

The letter I is located at row 5 and column 9 in Matrix-II, which gives the representation 59.

The letter O is located at row 8 and column 8 in Matrix-II, which gives the representation 88.

The letter N is located at row 2 and column 0 in Matrix-I, which gives the representation 20.

Combining these codes, we get the sequence 44, 59, 88, 20.

Explanation

The maternal grandfather of the girl is her mother's father. The only daughter of this maternal grandfather must be the girl's mother.

Since this daughter is the sister of the boy's father, the girl's mother and the boy's father are siblings. Therefore, the boy and the girl are first cousins.

Explanation

The relationship between the first pair of words, honest and truthful, is that of synonyms, as both words convey the same meaning of being upright and sincere. To maintain this synonymous relationship in the second pair, we need to identify a synonym for the word obdurate, which refers to someone who is stubborn, unyielding, and refuses to change their mind or opinion. The word adamant also means refusing to be persuaded or refusing to change one's mind, making it a perfect synonym for obdurate and completing the analogy.

Explanation

The relationship between the terms is based on reverse alphabetic positioning, where the sum of the forward and backward positions of corresponding letters in the English alphabet is 27.

For the first pair CDE : XWV: C (3rd letter) and X (24th letter) sum to 27. D (4th letter) and W (23rd letter) sum to 27. E (5th letter) and V (22nd letter) sum to 27.

Applying this exact rule to find the term corresponding to QPO: The letter corresponding to Q (17th letter) is J (10th letter) because 17 + 10 = 27. The letter corresponding to P (16th letter) is K (11th letter) because 16 + 11 = 27. The letter corresponding to O (15th letter) is L (12th letter) because 15 + 12 = 27.

This gives JKL.

Explanation

The analogy follows the mathematical pattern of n³ + n.

For the first term: 2³ + 2 = 8 + 2 = 10

Applying the same logic to the second term: 3³ + 3 = 27 + 3 = 30

Explanation

Lenient means permissive, merciful, or tolerant. This represents a gentle, flexible, or forgiving attitude, which is the opposite of the other terms that all carry the meaning of being firm, stubborn, or unyielding.

Explanation

The positional values of letters in XAD are X (24), A (1), and D (4). The difference between consecutive letters is +3 (from X to A) and +3 (from A to D). In all other combinations, the letters increase by +2 and +3 respectively.

Explanation

For the numbers 428, 326, and 177, the product of the first two digits is equal to the third digit (4 × 2 = 8, 3 × 2 = 6, and 1 × 7 = 7). The number 325 does not follow this pattern because the product of its first two digits is 3 × 2 = 6, which is not equal to its third digit, 5.

Explanation

The number 111 is the odd one out because the sum of its second and third digits (1 + 1 = 2) is not equal to its first digit (1), whereas in all other options, the first digit of the number is equal to the sum of the remaining two digits.