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

Explanation

The series is formed by two separate letter patterns with increasing differences.

For the first letters, the position of each letter in the English alphabet increases by consecutively larger numbers: A (1) + 2 = C (3) C (3) + 3 = F (6) F (6) + 4 = J (10) J (10) + 5 = O (15)

For the second letters, the position decreases by consecutively larger numbers: T (20) - 2 = R (18) R (18) - 3 = O (15) O (15) - 4 = K (11) K (11) - 5 = F (6)

Combining the two letters gives the next term.

Explanation

The given series consists of two alternating sub-series.

The first sub-series comprises the first, third, and fifth terms: BC, DE, and the missing term.

The second sub-series comprises the second and fourth terms: OP, QR.

In the first sub-series, each term consists of two consecutive letters in alphabetical order. The terms progress by skipping to the next consecutive pair of letters in the alphabet. Following the term BC, the next consecutive pair is DE, and following DE, the next consecutive pair is FG.

Explanation

The logic of the series is based on the decreasing ratio of the differences between consecutive terms.

The difference between the first two terms is 370 - 250 = 120. The difference between the next two terms is 394 - 370 = 24. The difference between the subsequent terms is 400 - 394 = 6.

The sequence of these differences is 120, 24, 6. We can observe that each successive difference is obtained by dividing the previous difference by decreasing consecutive integers: 120 ÷ 5 = 24 24 ÷ 4 = 6

Following this pattern, the next difference is obtained by dividing by 3: 6 ÷ 3 = 2

Adding this difference of 2 to the last term of the series gives the next term: 400 + 2 = 402

Explanation

Let F represent flowers, S represent stems, and R represent roots.

The statement all flowers are stems indicates F ⊆ S. The statement all stems are roots indicates S ⊆ R. Combining these relations gives F ⊆ S ⊆ R.

Conclusion I states that all roots are flowers, which requires R ⊆ F. This is not necessarily true as the set of roots is a superset of the set of flowers and can contain elements that are not flowers.

Conclusion II states that all stems are flowers, which requires S ⊆ F. This is not necessarily true because stems is a superset of flowers and can contain elements that are not flowers.

Explanation

The present average age of Arjun, Preeti, and Priya is the average age three years ago plus 3 years, which is 42 + 3 = 45 years.

The sum of the present ages of Arjun, Preeti, and Priya is: 3 × 45 = 135 years

The sum of the present ages of all five individuals is: 5 × 50 = 250 years

Subtracting the present ages of Arjun, Preeti, Priya, and Karan from the total sum gives the present age of Ashish: 250 - 135 - 65 = 50 years

Explanation

To arrange the words in alphabetical order, compare their letters from left to right.

All words share the first two letters, Ra.

Comparing the third letter of each word, Radical has d, Ramification and Rampant have m, and Rapport has p. Since d comes first in the alphabet, Radical (iv) is the first word.

Next, comparing Ramification (i) and Rampant (ii) which both have m as their third letter, we compare their fourth letters. Ramification has i, while Rampant has p. Since i comes before p, Ramification (i) precedes Rampant (ii).

Rapport (iii) has p as its third letter, which comes after d and m, so it is placed last.

This gives the dictionary sequence as iv, i, ii, iii.

Explanation

By observing the code patterns for TEACHER (6427341) and MAN (825), we can establish a direct letter-to-digit mapping where each letter corresponds to a specific digit:

T is coded as 6 E is coded as 4 A is coded as 2 C is coded as 7 H is coded as 3 R is coded as 1 M is coded as 8 N is coded as 5

Applying this direct substitution to the word MERCHANT:

M becomes 8 E becomes 4 R becomes 1 C becomes 7 H becomes 3 A becomes 2 N becomes 5 T becomes 6

Joining these coded digits in sequence gives the code 84173256.

Explanation

The pattern in each column follows the relation: (First number)³ + (Second number)² = Third number

For the first column: 5³ + 2² = 125 + 4 = 129

For the second column: 7³ + 4² = 343 + 16 = 359

For the third column, applying the same relation: 6³ + 7² = 216 + 49 = 265

Explanation

By substituting the actual mathematical operators in place of the symbols as given: | represents ÷ represents - % represents × @ represents +

The expression 8442 | 9 # 7 % 6 @ 4 becomes: 8442 ÷ 9 - 7 × 6 + 4

Applying the BODMAS rule:

First, division is performed: 8442 ÷ 9 = 938

Next, multiplication is performed: 7 × 6 = 42

The expression now is: 938 - 42 + 4

Performing subtraction and addition from left to right: 938 - 42 = 896 896 + 4 = 900

Explanation

The pattern of the letter series is the sequential repetition of the word RABBIT.

By placing the set of letters R, T, A, B, R, B into the respective blanks of the sequence:

_ ABBI _ R _ B _ IT _ AB _ IT

We get:

R ABBI T R A B B IT R AB B IT

This completes three full cycles of the word RABBIT:

RABBIT | RABBIT | RABBIT

Explanation

Let the school be the starting point represented by the coordinates (0, 0) on a Cartesian plane where the x-axis represents the West-East direction and the y-axis represents the South-North direction.

First, traveling 20 km towards the north moves him to (0, 20).

Next, turning left (which faces west) and traveling 30 km moves him to (-30, 20).

Then, turning east and traveling 50 km moves him in the positive x-direction, reaching (-30 + 50, 20) which is (20, 20).

Finally, turning to his right while facing east means he turns south. Traveling 20 km south changes his coordinates to (20, 20 - 20) which is (20, 0).

Since his final position is (20, 0) relative to his school at (0, 0), he is located directly to the east of his school.

Explanation

To find the set of numbers representing the word PHONE, each letter is identified by its row number first and then its column number.

For the letter P, Row 5 and Column 9 in Matrix-II give the number 59. For the letter H, Row 0 and Column 4 in Matrix-I give the number 04. For the letter O, Row 9 and Column 5 in Matrix-II give the number 95. For the letter N, Row 0 and Column 1 in Matrix-I give the number 01. For the letter E, Row 5 and Column 6 in Matrix-II give the number 56.

Combining these codes in sequence, the word PHONE is represented by the set of numbers 59, 04, 95, 01, 56.

Explanation

The phrase her mother's son refers to the girl's brother. If the girl's brother is the nephew of Pooja's father, it means the brother is Pooja's cousin (the child of her father's sibling). Since the girl is the sister of this brother, she shares the same relationship with Pooja, making her Pooja's cousin.

Explanation

The relationship in the first pair is antonymous, as intelligent is the direct opposite of dumb. Applying the same logic to the second pair, the opposite of inflate is deflate.

Explanation

In the English alphabetical series, each letter corresponds to a specific numerical position: F = 6, S = 19, I = 9, T = 20, Q = 17, and U = 21.

By analyzing the relation in the first pair FS to IT: The first letter increases by 3 positions: F + 3 = I (6 + 3 = 9) The second letter increases by 1 position: S + 1 = T (19 + 1 = 20)

Applying the same pattern to QT: The first letter increases by 3 positions: Q + 3 = T (17 + 3 = 20) The second letter increases by 1 position: T + 1 = U (20 + 1 = 21)

This gives the related letters as TU.

Explanation

The relationship is based on the positional values of the letters in the English alphabetical order.

The alphabetical positions of the letters in HI are H = 8 and I = 9. Adding these positions gives 8 + 9 = 17.

Applying the same logic to PQ, the alphabetical positions are P = 16 and Q = 17. Adding these positions gives 16 + 17 = 33.

Explanation

The relationship between the numbers in the first pair follows the pattern x : x⁵. For the first term, 4 raised to the power of 5 is 4⁵ = 1024. Applying this identical mathematical pattern to the second term where x = 7, we calculate 7⁵ = 16807.

Explanation

Hydrogen is a highly reactive, diatomic gas belonging to Group 1 of the periodic table, whereas the other three elements are chemically inert noble gases belonging to Group 18.

Explanation

The positional values of the letters in the English alphabet are O = 15, X = 24, and F = 6. The difference between O and X is 9 (15 + 9 = 24), but the difference between X and F is 8 (24 + 8 = 32, which corresponds to F in the cyclic alphabet). Because this letter group has a non-uniform transition of +9 and +8, it deviates from the consistent +9 transition between successive letters.

Explanation

The letter group ABC follows a forward alphabetical sequence where each consecutive letter is obtained by adding 1 to the positional value of the preceding letter (+1, +1). In contrast, all the other groups follow a reverse alphabetical sequence where each consecutive letter is obtained by subtracting 1 from the preceding letter (-1, -1).

Explanation

In the number 5841, the product of the first two digits is 5 × 8 = 40, which is not equal to the number formed by the last two digits, which is 41. In contrast, the other options follow the pattern where the product of the first two digits equals the value represented by the last two digits.

Explanation

The given series represents a sequential food chain in an ecosystem, representing the flow of energy from one trophic level to the next. In this sequence, a caterpillar feeds on the leaf, a frog consumes the caterpillar, and a snake preys upon the frog as the next link in the food chain.

Explanation

The series is formed by two independent alphabetical progressions for the first and second letters of each pair.

The first letters progress by adding 3 to their alphabetical positions: C (3) + 3 = F (6) F (6) + 3 = I (9) I (9) + 3 = L (12) L (12) + 3 = O (15)

The second letters progress by subtracting 3 from their alphabetical positions: D (4) - 3 = A (1) A (1) - 3 = X (24) X (24) - 3 = U (21) U (21) - 3 = R (18)

This yields the letters O and R.

Explanation

The series follows a pattern where each term is obtained by adding 4 to the alphabetical positions of the letters of the preceding term.

For the first letter of each term, the alphabetical positions increase by 4: R (18) + 4 = V (22) V (22) + 4 = Z (26) Z (26) + 4 = D (30 or 4)

For the second letter of each term, the alphabetical positions also increase by 4: T (20) + 4 = X (24) X (24) + 4 = B (28 or 2) B (2) + 4 = F (6)

Applying this pattern to the first term RT yields the missing term VX.

Explanation

The series follows the mathematical pattern of n³ - n² where n represents the position of each term in the sequence starting from 1.

The first term (n = 1) is 1³ - 1² = 0. The second term (n = 2) is 2³ - 2² = 4. The third term (n = 3) is 3³ - 3² = 18. The fourth term (n = 4) is 4³ - 4² = 48. The fifth term (n = 5) is 5³ - 5² = 100. The sixth term (n = 6) is 6³ - 6² = 180.

To find the missing seventh term (n = 7), the formula yields 7³ - 7² which equals 343 - 49 = 294.

Explanation

The first statement establishes that all young girls are modern. The second statement establishes that no modern men are superstitious.

Conclusion I claims that no girls are superstitious. However, the premises only specify that young girls are modern, with no information given about other girls, nor is there any link provided between modern female individuals and superstition. Thus, Conclusion I cannot be logically deduced.

Conclusion II claims that no young men are superstitious. Although we know that no modern men are superstitious, there is no information given to determine whether all young men are modern. It is possible that young men who are not modern are superstitious. Therefore, Conclusion II does not logically follow.

Since neither statement provides enough logical connection to validate either conclusion, neither conclusion follows.

Explanation

Let the age of Rahul be R.

According to the given conditions: Ajay's age is 5 years less than Rahul's age: Ajay's age = R - 5

Rahul's wife's age is 6 years less than Rahul's age: Rahul's wife's age = R - 6

Ajay's wife's age is 1 year older than Rahul's wife's age: Ajay's wife's age = (R - 6) + 1 = R - 5

Comparing the equations, both Ajay's age and Ajay's wife's age are equal to R - 5, meaning they are of the same age.

Explanation

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

All four words begin with the same prefix For.

Comparing the fourth letters of each word: Forbes has b. Forensic and Forest have e. Formation has m.

Since b comes before e, and e comes before m, Forbes is the first word in the sequence and Formation is the last.

To determine the relative order between Forensic and Forest, we compare their fifth letters: Forensic has n. Forest has s.

Since n comes before s in the alphabet, Forensic precedes Forest.

Thus, the correct dictionary order of the words is Forbes, Forensic, Forest, and Formation, which corresponds to the sequence i, iii, ii, iv.

Explanation

In this coding scheme, each letter corresponds directly to the digit in its respective position from the given words. From the word STATION (5313462), we can extract the values T = 3, A = 1, I = 4, and N = 2. From the word RED (789), we get the value R = 7. Substituting these established digit values for the letters in the word TRAIN in order gives the coded sequence 37142.

Explanation

The sum of the numbers in each row remains constant:

Row 2: 7 + 23 + 17 = 47 Row 3: 8 + 9 + 30 = 47

Applying the same constant sum pattern to Row 1: 6 + 16 + ? = 47 22 + ? = 47 ? = 47 - 22 = 25

Explanation

By replacing the letters with their respective mathematical operators: L denotes ÷ S denotes × V denotes - M denotes +

The expression 72 L 24 S 3 V 7 M 2 becomes: 72 ÷ 24 × 3 - 7 + 2

Applying the BODMAS rule:

First, perform the division operation: 72 ÷ 24 = 3

The expression becomes: 3 × 3 - 7 + 2

Next, perform the multiplication operation: 3 × 3 = 9

The expression becomes: 9 - 7 + 2

Finally, perform the addition and subtraction from left to right: 9 - 7 = 2 2 + 2 = 4

Explanation

The letter series follows a progressive pattern where the base group abd grows by adding an additional letter d in each successive repetition.

The complete series is divided into three segments: abd abdd abddd

Substituting the letters b, a, d, and d sequentially into the gaps yields: a b d a b d d a b d d d

This perfectly completes the sequence.

Explanation

Chasing an object or vehicle requires moving in the same direction as that object. Since the bike is moving towards the south-west, Mohan must also travel in the south-west direction to chase it.

Explanation

The letters of the word STRAIN can be identified from the matrices by finding their row and column numbers. For the letter S, row 1 and column 2 of Matrix-I intersect at S, which gives 12. For the letter T, row 8 and column 8 of Matrix-II intersect at T, which gives 88. For the letter R, row 4 and column 3 of Matrix-I intersect at R, which gives 43. For the letter A, row 7 and column 6 of Matrix-II intersect at A, which gives 76. For the letter I, row 2 and column 1 of Matrix-I intersect at I, which gives 21. For the letter N, row 7 and column 8 of Matrix-II intersect at N, which gives 78. This forms the complete set 12, 88, 43, 76, 21, 78.

Explanation

Abhishek, Byomkesh, and Jackie are brothers, meaning they share the same parents. Since Ella is the mother of Byomkesh, she is also the mother of Abhishek and Jackie. Similarly, since Vimal is the father of Jackie, he is also the father of Abhishek and Byomkesh. As Ella is the mother and Vimal is the father of the same children, Ella is the wife of Vimal.

Explanation

The given analogy represents the relationship between an animal and the characteristic vocal sound it makes. A sparrow produces the sound of chirping, and in the same way, a cat produces the sound of mewing.

Explanation

The relation between the letters is established by shifting each letter forward by 7 positions in the English alphabetical order.

Analyzing the first pair, IJKL and PQRS: I + 7 = P (9 + 7 = 16) J + 7 = Q (10 + 7 = 17) K + 7 = R (11 + 7 = 18) L + 7 = S (12 + 7 = 19)

Applying the same shift of +7 to EFGH: E + 7 = L (5 + 7 = 12) F + 7 = M (6 + 7 = 13) G + 7 = N (7 + 7 = 14) H + 7 = O (8 + 7 = 15)

This gives the corresponding term LMNO.

Explanation

The relationship between the first pair RST and QPO is established by alphabetical sequencing. The letters RST are in consecutive forward alphabetical order. The corresponding set QPO is in consecutive reverse alphabetical order, starting with the letter Q, which immediately precedes R in the alphabet.

Following the same logic for MNO, which is also in consecutive forward alphabetical order, the related set must start with the letter immediately preceding M, which is L, and continue in consecutive reverse alphabetical order. This yields the letters LKJ.

Explanation

The logic followed in this analogy is x : x × (x + 2).

For the first pair, when x = 6: 6 × (6 + 2) = 6 × 8 = 48

Applying the same logic for the second pair, when x = 8: 8 × (8 + 2) = 8 × 10 = 80

Explanation

White is a polychromatic color that is not a spectral color and does not appear in the rainbow spectrum (VIBGYOR). It is formed by the combination of all wavelengths of visible light, whereas the others are individual spectral colors with distinct single wavelengths.

Explanation

The alphabetical positions of the letters in STW are S = 19, T = 20, and W = 23. The differences between consecutive letter positions are +1 and +3. This deviates from the consistent position difference pattern of +2 and +1 observed in the other groups.

Explanation

The number 28 is not divisible by 3, whereas the other numbers are multiples of 3.

Explanation

The number 25 is a perfect square (5²) and also an odd number, which distinguishes it from the other numbers in the group.

Explanation

The position of each letter in the English alphabetical order is: L = 12 Q = 17 X = 24 G = 7 R = 18

The series follows a pattern of adding consecutive odd numbers starting from 5: 12 + 5 = 17 (Q) 17 + 7 = 24 (X) 24 + 9 = 33, which corresponds to 7 (G) because 33 - 26 = 7 7 + 11 = 18 (R) 18 + 13 = 31, which corresponds to 5 (E) because 31 - 26 = 5

Explanation

Each term in the series consists of four letters, which follow a specific pattern for each position:

The first letter of each term increases by two positions in the alphabetical order: E (+2) to G, G (+2) to I, I (+2) to K, and K (+2) to M.

The second letter remains constant as L in all terms.

The third letter of each term increases by two positions in the alphabetical order: F (+2) to H, H (+2) to J, J (+2) to L, and L (+2) to N.

The fourth letter remains constant as A in all terms.

Combining these patterns, the missing term is KLLA.

Explanation

To find the next term in the series, look at the differences between consecutive terms:

26 - 15 = 11 48 - 26 = 22 81 - 48 = 33 125 - 81 = 44

The differences between successive terms are consecutive multiples of 11. Following this pattern, the next difference must be 55.

The next term is calculated as: 125 + 55 = 180

Explanation

The difference between consecutive terms in the series follows the sequence of perfect cubes of successive natural numbers starting from 2.

17 - 9 = 8 = 2³ 44 - 17 = 27 = 3³ 108 - 44 = 64 = 4³ 233 - 108 = 125 = 5³

Following this pattern, the next difference must be the cube of 6, which is 6³ = 216.

Adding 216 to the last term gives 233 + 216 = 449.

Explanation

According to Statement I, a library is a place where one can find any answer to his or her question. Statement II establishes that books, in either physical or electronic form, are advantageous for resolving any kind of query.

Combining these statements, since a library contains books and every question can find an answer there, it follows that every question has an answer and it can be found in a book. This validates Conclusion I.

Furthermore, because books are designed to resolve queries on specific topics, they contain all the related information pertaining to their respective titles or subjects. This validates Conclusion II. Thus, both conclusions follow logically from the given premises.

Explanation

Let the six positions from left to right be represented as 1 to 6. From the given conditions, Garima is between Reena and Amita, and Amita is to the immediate left of Pooja. This gives the consecutive group Reena-Garima-Amita-Pooja. This four-person group can occupy different positions in the row of six.

If the group Reena-Garima-Amita-Pooja occupies positions 1 to 4, then the remaining positions 5 and 6 are occupied by Arpita and Rekha respectively, since Arpita is to the left of Rekha. In this case, Reena is at the extreme left end.

If the group Reena-Garima-Amita-Pooja occupies positions 2 to 5, then Arpita must be at position 1 and Rekha at position 6. In this case, Arpita is at the extreme left end.

Since there are multiple possible arrangements where either Reena or Arpita can be at the extreme left, the exact person at the extreme left end cannot be determined.

Explanation

Comparing the first letter, all words start with M.

Comparing the second letter, we have a in Manufacture and Maritime, e in Meaning and Medieval, and o in Motives. Since alphabetical order is a, e, then o, the Ma words come first, followed by Me, and finally Mo.

For the Ma group, we compare the third letters of Manufacture and Maritime. Since n comes before r, Manufacture (v) precedes Maritime (iv).

For the Me group, we compare the third letters of Meaning and Medieval. Since a comes before d, Meaning (ii) precedes Medieval (iii).

The word Motives (i) contains the second letter o, placing it last in the sequence.