RRB NTPC CBT 1 2026 General Intelligence & Reasoning Questions with Solutions

Explanation

Conclusion (I) follows because all heaters are fans, and since some heaters are lights, those heaters are also fans, which means some fans are lights. Conclusion (II) follows directly from the third statement through immediate conversion, as the statement no heater is a bulb implies that no bulb is a heater.

Explanation

When seven people sit around a circular table facing the centre, moving clockwise corresponds to moving left and moving counter-clockwise corresponds to moving right.

Placing A at position 1: E sits third to the right (counter-clockwise) of A, so E is at position 5. E sits to the immediate right of F, which places F at position 6. F sits third to the left (clockwise) of D, placing D at position 3. Only one person sits between G and C when counted from the left of C, which places C at position 7 and G at position 2 (with A at position 1 between them). The remaining position 4 is occupied by B, who is at position 4 and thus not adjacent to F at position 6.

The clockwise order of persons around the table is A, G, D, B, E, F, C.

Counting third to the right (counter-clockwise) from G at position 2: the first person to the right is A, the second is C, and the third is F.

Explanation

To find the letters that are immediately preceded and immediately followed by a symbol, search for the pattern: Symbol → Letter → Symbol.

Scanning the series from left to right: J is surrounded by symbols: ∈ J ∈ V is surrounded by symbols: * V ∈ G is surrounded by symbols: ∈ G * A is surrounded by symbols: @ A ∈

There are 4 such letters (J, V, G, and A) that satisfy the given condition.

Explanation

The pattern followed in both letter-cluster pairs is a forward shift of 3 positions (+3) for each letter in the alphabetical order.

For the left pair WSQ : ZVT: W (23) + 3 = Z (26) S (19) + 3 = V (22) Q (17) + 3 = T (20)

Applying the same +3 shift to JFD yields MIG: J (10) + 3 = M (13) F (6) + 3 = I (9) D (4) + 3 = G (7)

Explanation

The pattern between the letter-clusters in both pairs is formed by adding 8 to the positional value of each letter in the English alphabet (with wrap-around after Z):

For the first pair, FPX : NXF: F (6) + 8 = 14 (N) P (16) + 8 = 24 (X) X (24) + 8 = 32 mod 26 = 6 (F)

For the second pair, KUC : SCK: K (11) + 8 = 19 (S) U (21) + 8 = 29 mod 26 = 3 (C) C (3) + 8 = 11 (K)

Both pairs follow the uniform rule of adding +8 to each letter position.

Explanation

The series follows two distinct patterns for the letter clusters and the numbers.

For the letter clusters, the first letter of each cluster advances by 5 positions in the alphabet: O (15) → T (20) → Y (25) → D (4) → I (9). Within each cluster, the second letter is 2 positions ahead of the first, and the third letter is 1 position ahead of the second: I + 2 = K (11), and K + 1 = L (12), forming IKL.

For the numbers, the sequence decreases by 7 in each step: 42 → 35 → 28 → 21 → 14.

Combining both patterns yields IKL 14.

Explanation

T lives on an even numbered floor other than 6, which leaves floor 2 or 4. Since the sum of the floor numbers of T and R is 3, T must live on floor 2 and R on floor 1 (2 + 1 = 3).

Since T lives on floor 2, exactly 1 person lives below T (R on floor 1).

Explanation

Each letter in the cluster advances by 4 positions forward in the English alphabetical series: First letter: Q (+4) = U, U (+4) = Y, Y (+4) = C, C (+4) = G Second letter: I (+4) = M, M (+4) = Q, Q (+4) = U, U (+4) = Y Third letter: L (+4) = P, P (+4) = T, T (+4) = X, X (+4) = B

The number increases by 4 in each term: 14 + 4 = 18, 18 + 4 = 22, 22 + 4 = 26, 26 + 4 = 30

Combining these gives GYB 30.

Explanation

In this pattern, each letter in the second cluster is formed by moving one position backward (-1) in the English alphabetical order from the corresponding letter of the first cluster. In AY-YZ, subtracting 1 from A yields Z (not Y) and subtracting 1 from Y yields X (not Z), so it does not follow the -1 pattern.

Explanation

Applying the given operations to each digit of 8674153: For even digits (8, 6, 4), subtracting 2 gives 6, 4, and 2 respectively. For odd digits (7, 1, 5, 3), adding 1 gives 8, 2, 6, and 4 respectively.

The digits in the newly formed number are 6, 4, 8, 2, 2, 6, and 4. The highest digit among these is 8 and the lowest digit is 2.

Difference = 8 - 2 = 6.

Explanation

By comparing both coded statements, 'window' is the only common word present in 'window is open' and 'clean the window'. Similarly, 'fq' is the only common code present in 'fq ul pt' and 'zd fq wp'. Therefore, 'window' is coded as 'fq'.

Explanation

The pattern follows two independent rules for the letters and the numbers:

For the letters: First letters advance by 4 positions: J (10) + 4 = N (14) + 4 = R (18) + 4 = V (22) + 4 = Z (26). Second letters advance by 4 positions: I (9) + 4 = M (13) + 4 = Q (17) + 4 = U (21) + 4 = Y (25). Third letters advance by 4 positions: M (13) + 4 = Q (17) + 4 = U (21) + 4 = Y (25) + 4 = C (3).

For the numbers: The sequence decreases by 12 at each step: 36 - 12 = 24 24 - 12 = 12 12 - 12 = 0 0 - 12 = -12

Combining the letters and number yields ZYC- 12.

Explanation

Arranging the seven people around a circular table facing the centre, clockwise movement represents the left direction and counter-clockwise movement represents the right direction:

Placing N at position 1 and counting two people to the right of N (counter-clockwise) places Q at position 5. Having three people sit between N and P places P at position 4. Placing two people between Q and M positions M at position 2. L sits to the immediate left of R (clockwise), placing R at position 6 and L at position 7. The remaining position 3 is occupied by K.

The clockwise arrangement starting from N is N, M, K, P, Q, R, L. Moving three positions to the left (clockwise) from K leads to R.

Explanation

Replacing the letters with their respective mathematical operations (A = ÷, B = ×, C = +, D = -) gives the expression:

15 ÷ 5 + 6 × 8 - 1

Applying the BODMAS rule, perform division first, followed by multiplication, addition, and subtraction:

15 ÷ 5 = 3 6 × 8 = 48 3 + 48 - 1 = 50

Explanation

In the letter-cluster pair QR - SW, the positional values in the English alphabetical order are Q = 17, R = 18, S = 19, and W = 23. The difference between corresponding letters is Q + 2 = S and R + 5 = W, which deviates from the pattern where each letter in the second cluster is obtained by adding 3 to the corresponding letter of the first cluster.

Explanation

From the given statements, all tables are boards and some tables are desks. Since the set of tables is entirely contained within the set of boards, the region where tables overlap with desks is also inside the set of boards. Thus, some boards are desks, so Conclusion I logically follows.

Chairs are a subset of tables, and the statement that some tables are desks does not ensure that the overlapping portion between tables and desks includes any chairs. Therefore, Conclusion II does not necessarily follow.

Explanation

The given expression is decoded step-by-step using the defined relations:

D ÷ F means D is the father of F. F - G means F is the brother of G. This makes D the father of G as well. G × H means G is the wife of H. Thus, D is the father of H's wife. H + J means H is the son of J.

Combining these relationships, J's son is H, H's wife is G, and D is the father of G. Therefore, D is J's son's wife's father.

Explanation

The highest number among the given set of numbers (547, 589, 652, 598, 637) is 652, whose second digit is 5.

The lowest number in the set is 547, whose second digit is 4.

Adding the second digit of the highest number to the second digit of the lowest number gives 5 + 4 = 9.

Explanation

The highest number in the given set is 854, whose second digit is 5. The lowest number in the given set is 237, whose second digit is 3. Adding these two digits gives 5 + 3 = 8.

Explanation

Comparing the common letters and digits between both coded words:

'TOUR' = 2374 'RIOT' = 7634

The letters T, O, and R are common to both words, corresponding to the common digits 3, 7, and 4 in some order. The only letter present in 'RIOT' but not in 'TOUR' is 'I', and the only digit present in '7634' but not in '2374' is 6. Therefore, the code for 'I' is 6.

Explanation

The given series follows a pattern where the difference between consecutive terms increases as the squares of consecutive natural numbers:

45 + 1² = 46 46 + 2² = 50 50 + 3² = 59 59 + 4² = 75

Following this pattern, the missing term is: 75 + 5² = 75 + 25 = 100

Explanation

Fixing the positions of the seven people in a clockwise circular arrangement facing the centre:

Placing W at position 1, H sits third to its left at position 5. U sits to the immediate right of H at position 6. Since U is third to the right of I, I is placed at position 3.

The remaining available positions are 2, 4, and 7. Since F cannot be an immediate neighbour of H, F cannot sit at position 4. To satisfy the condition that V sits second to the left of G, G must be at position 4 and V at position 2. This leaves position 7 for F.

The clockwise (right) order from 1 to 7 is W, V, I, G, H, U, F.

Counting from the right of F (position 7) to G (position 4) covers positions 1, 2, and 3, which are occupied by W, V, and I. Thus, there are 3 people sitting between F and G.

Explanation

To find symbols that are immediately preceded by an odd number and not immediately followed by an even number, examine each symbol in the series from left to right:

The symbol + is preceded by 9 (odd number) and followed by 7 (odd number). The symbol - is preceded by 7 (odd number) and followed by 1 (odd number). The symbol # is preceded by 1 (odd number) and followed by % (symbol). The symbol ? is preceded by 5 (odd number) and followed by | (symbol).

Explanation

The logic followed here is: (First Number × 6) + 14 = Second Number.

For 12: (12 × 6) + 14 = 72 + 14 = 86

For 17: (17 × 6) + 14 = 102 + 14 = 116

Applying the same logic to 21: (21 × 6) + 14 = 126 + 14 = 140

Explanation

The pattern relating the two numbers in each set is: Second number = (First number × 5) - 2

For the given sets: 15 × 5 - 2 = 75 - 2 = 73 19 × 5 - 2 = 95 - 2 = 93

Applying the same pattern to 23: 23 × 5 - 2 = 115 - 2 = 113

Explanation

The pattern shifts each letter backward by 3 positions in alphabetical order and increases the number by 2:

H (8) - 3 = E (5), M (13) - 3 = J (10), 14 + 2 = 16 R (18) - 3 = O (15), W (23) - 3 = T (20), 22 + 2 = 24

Applying the same logic to SX 27: S (19) - 3 = P (16) X (24) - 3 = U (21) 27 + 2 = 29

Explanation

Taking Point A as the origin (0, 0): Moving 22 km South reaches (0, -22). Turning right (West) and driving 13 km reaches (-13, -22). Turning right (North) and driving 27 km reaches (-13, -22 + 27) = (-13, 5). Turning right (East) and driving 21 km reaches (-13 + 21, 5) = (8, 5). Turning right (South) and driving 5 km reaches Point P at (8, 5 - 5) = (8, 0).

Point P is 8 km to the East of Point A (0, 0) along the same horizontal line. To return to Point A from Point P, Lagan must travel 8 km towards the West.

Explanation

The logic follows the formula: Second Number = (First Number × 6) + 1.

Applying this pattern to the given pairs: 23 × 6 + 1 = 138 + 1 = 139 28 × 6 + 1 = 168 + 1 = 169

Applying the same logic to 25: 25 × 6 + 1 = 150 + 1 = 151

Explanation

The series increases by adding consecutive prime numbers to each successive term:

13 + 2 = 15 15 + 3 = 18 18 + 5 = 23 23 + 7 = 30 30 + 11 = 41

The prime number following 7 is 11, so adding 11 to 30 gives 41.

Explanation

Let the five positions from left to right be numbered 1 to 5.

Statement I alone shows that Pallav and Ritu stand together as a block (Pallav, Ritu) and Ritu cannot be at position 1 or 5. This allows multiple positions for Pallav and Ritu, so it is insufficient.

Statement II alone places Nisha at position 1 and Suman immediately to the left of Ojas as a block (Suman, Ojas). The remaining positions (2, 3, 4, 5) can accommodate this block in multiple ways, so it is insufficient.

Combining both statements: Nisha is at position 1. scaled across positions 2 to 5, the two two-person blocks (Pallav, Ritu) and (Suman, Ojas) must occupy positions 2, 3, 4, 5 in some order. If (Suman, Ojas) occupies positions 2 and 3 and (Pallav, Ritu) occupies positions 4 and 5, Ritu stands at position 5 (the extreme right end), which violates Statement I. Thus, (Pallav, Ritu) must occupy positions 2 and 3, and (Suman, Ojas) must occupy positions 4 and 5.

This uniquely gives the order from left to right: Nisha, Pallav, Ritu, Suman, Ojas. Therefore, Pallav is second from the left end.

Explanation

Arranging the seven days from Monday (day 1) to Sunday (day 7):

Since four people have exams after V, V is on Wednesday (day 3). Since four people have exams before S, S is on Friday (day 5).

P has the exam after R but before V (Wednesday), which places R on Monday and P on Tuesday.

The remaining days are Thursday, Saturday, and Sunday for Q, T, and U. T has the exam after Q but cannot be on Sunday, so Q is on Thursday, T is on Saturday, and U is on Sunday.

The complete order from Monday to Sunday is R, P, V, Q, S, T, U. Between Q (Thursday) and U (Sunday), the exams are scheduled for S (Friday) and T (Saturday), making a total of two people.

Explanation

The letters common to COOK and HOOK are O, O, and K. Comparing the digits in 8245 and 5429, the common digits are 2, 4, and 5. Removing these common elements leaves the letter H in HOOK corresponding directly to the remaining digit 9.

Explanation

Floor 4 is occupied by U. Since X lives immediately below U, X lives on floor 3. With only two people between U (floor 4) and Z, Z is on floor 1. For T to be the only person living between U (floor 4) and Y, T must be on floor 5 and Y on floor 6, as floor 3 is already occupied by X.

Explanation

In LK-IK, the positional values of the letters are L (12), K (11), I (9), and K (11). This pair does not follow the pattern of four consecutive letters in reverse alphabetical order with a constant difference of -1 between each adjacent letter, as the sequence skips from 11 to 9 and then repeats 11.

Explanation

Original number: 7 8 1 4 3 2 9 Ascending order: 1 2 3 4 7 8 9

Comparing the positions of each digit in the original and newly arranged numbers: 1st position: 7 → 1 2nd position: 8 → 2 3rd position: 1 → 3 4th position: 4 → 4 (Unchanged) 5th position: 3 → 7 6th position: 2 → 8 7th position: 9 → 9 (Unchanged)

The digits 4 and 9 remain in the exact same positions (4th and 7th positions respectively), making a total of two digits whose positions remain unchanged.

Explanation

Let the seven positions around the circular table in clockwise order be 1 to 7 facing the center.

Placing D at position 1, C sits at position 6 so that 4 people (positions 2, 3, 4, and 5) sit between D and C when counting to the right (clockwise) of D.

R sits third to the right of D, placing R at position 4.

P is an immediate neighbor of both C (position 6) and R (position 4), placing P at position 5.

B sits third to the left of Q. Placing Q at position 3, moving third to the left (counter-clockwise) puts B at position 7.

The only remaining vacant position 2 is occupied by O.

The complete clockwise arrangement is D, O, Q, R, P, C, B. Counting to the left (counter-clockwise) of O toward P, the people sitting between them are D, B, and C, giving a total of 3 people.

Explanation

Converting the letters of JFH to their positional values in the alphabetical series gives J = 10, F = 6, and H = 8. The relationship between the letters is 10 - 4 = 6 and 6 + 2 = 8 (-4, +2). All other clusters follow a pattern of subtracting 4 from the first letter's position to get the second letter, and adding 3 to the second letter's position to get the third letter (-4, +3).

Explanation

Decoding the given expression G # P - L # C + D step-by-step:

C + D means C is the mother of D. L # C means L is the daughter of C. P - L means P is the brother of L. Since P and L are siblings with C as their mother, P is also the son of C, which makes P the brother of D. G # P means G is the daughter of P.

Since P is the brother of D and G is the daughter of P, G is D's brother's daughter.

Explanation

Interchanging the signs '+' with '-' and '×' with '÷' on both sides of the given equation:

25 × 2 - 12 ÷ 4 + 7 = ? - 13

Applying the order of operations (BODMAS) to evaluate the left side:

Division: 12 ÷ 4 = 3 Multiplication: 25 × 2 = 50

Substitute these values back into the expression: 50 - 3 + 7 = ? - 13 54 = ? - 13

Solving for '?': ? = 54 + 13 = 67

Explanation

Floors are numbered 1 to 6 from bottom to top.

Since L lives on floor 1 and only one person lives between L and K, K lives on floor 3.

Only two people live between S and K, placing S on floor 6.

J lives above K and has two people between J and T, which places J on floor 5 and T on floor 2.

The remaining floor 4 is occupied by R.

The floor arrangement from top (6) to bottom (1) is S, J, R, K, T, L. Between R on floor 4 and S on floor 6, there is only 1 person (J on floor 5).

Explanation

Taking Point A as the origin (0, 0): Moving 46 km West brings Dinesh to (-46, 0). Turning left (South) and driving 25 km brings him to (-46, -25). Turning left (East) and driving 35 km brings him to (-11, -25). Turning left (North) and driving 67 km brings him to (-11, 42). Turning right (East) and driving 11 km brings him to Point P at (0, 42).

Point P is located 42 km North of Point A. Therefore, to drive from Point P back to Point A, he must travel 42 km to the South.

Explanation

We need to find elements following the pattern: [Letter] [Symbol] [Number].

Scanning the series from left to right: D % 9: The symbol % is preceded by the letter D and followed by the number 9. F # 6: The symbol # is preceded by the letter F and followed by the number 6.

There are 2 such symbols that satisfy the given conditions.

Explanation

The pattern shifts the alphabetical position of each letter by +5, -2, and +5 respectively.

In RUB : WSG R (18) + 5 = W (23) U (21) - 2 = S (19) B (2) + 5 = G (7)

In BQL : GOQ B (2) + 5 = G (7) Q (17) - 2 = O (15) L (12) + 5 = Q (17)

Applying the same rule to LMV yields QKA: L (12) + 5 = Q (17) M (13) - 2 = K (11) V (22) + 5 = A (27, or 1 in cyclic alphabet order)

Explanation

The mathematical pattern linking consecutive numbers in the sets is: 1st number + 5 = 2nd number 2nd number × 2 = 3rd number 3rd number + 10 = 4th number

Applying these operations starting with 13: 13 + 5 = 18 18 × 2 = 36 36 + 10 = 46

Explanation

The pattern follows two independent rules for the letters and the numbers:

Each letter advances by +6 positions in the alphabetical order (cyclically): First letters: H (8) + 6 = N (14), N + 6 = T (20), T + 6 = Z (26), Z + 6 = F (6) Second letters: K (11) + 6 = Q (17), Q + 6 = W (23), W + 6 = C (3), C + 6 = I (9) Third letters: S (19) + 6 = Y (25), Y + 6 = E (5), E + 6 = K (11), K + 6 = Q (17)

The numbers increase by +5 in each step: 13 + 5 = 18, 18 + 5 = 23, 23 + 5 = 28, 28 + 5 = 33

Combining these yields FIQ 33.

Explanation

The pattern in the series follows a distinct rule for each component:

First letter decreases by 3 in alphabetical positional value: Y (25) → V (22) → S (19) → P (16) → M (13).

Second letter decreases by 2 in alphabetical positional value: I (9) → G (7) → E (5) → C (3) → A (1).

Third letter decreases by 1 in alphabetical positional value: V (22) → U (21) → T (20) → S (19) → R (18).

Number increases by 4 in each step: 11 → 15 → 19 → 23 → 27.

Combining these gives MAR 27.

Explanation

Break down the expression W % A C + J step by step:

W % A indicates that W is the mother of A. A C indicates that A is the father of C. C + J indicates that C is the brother of J, which establishes that C is male.

Since A is the son of W, and C is the male child (son) of A, C is the son's son of W.

Explanation

The pattern follows a constant addition of 51 to the first number to obtain the second number:

107 + 51 = 158 122 + 51 = 173

Applying the same rule to 154: 154 + 51 = 205

Explanation

Statement I establishes that Prateek is taller than Mohit, Arjun, and Kunal (Prateek > Mohit > Arjun, Kunal), but gives no information about Saurav.

Statement II establishes that Prateek is taller than Saurav and Mohit (Prateek > Saurav > Mohit), but gives no information about Arjun and Kunal.

Combining both statements reveals that Prateek is taller than Saurav, Mohit, Arjun, and Kunal (Prateek > Saurav > Mohit > Arjun, Kunal), uniquely identifying Prateek as the tallest among all five individuals.

Explanation

Removing all letters (M, K, L, F, G, S, S, K, H, V, G) from the given series leaves only the symbols in order from left to right: % # @ ! + ? >.

Counting these 9 symbols from right to left, the positions are: > (1st), ? (2nd), + (3rd), ! (4th), @ (5th), # (6th), and (7th).