IBPS RRB Clerk Prelims 2024 Reasoning Questions with Solutions

Explanation

Comparing the positional difference |i - j| with the absolute numerical difference |d_i - d_j| for all pairs in '52786435' yields six valid pairs: (5, 7) at indices 1 and 3, (5, 8) at indices 1 and 4, (7, 8) at indices 3 and 4, (7, 4) at indices 3 and 6, (7, 3) at indices 3 and 7, and (4, 3) at indices 6 and 7.

Explanation

Floor 3 contains H in Flat X and F in Flat Y; Floor 2 contains G in Flat X and K in Flat Y; Floor 1 contains E in Flat X and L in Flat Y. Since L is in Flat Y on Floor 1, the person living immediately above L in the same flat (Flat Y) is K on Floor 2.

Explanation

In the building arrangement, Floor 3 has H and F, while Floor 1 has E and L, meaning H, F, E, and L all reside on odd-numbered outer floors. K resides on Floor 2, making K the only person on an even-numbered floor.

Explanation

G is situated on Floor 2 in Flat X, while F is situated on Floor 3 in Flat Y. Because Floor 3 is north relative to Floor 2 and Flat Y is east relative to Flat X, F lies in the North-East direction with respect to G.

Explanation

F resides on Floor 3, leaving two floors below F. For a person to have two floors above them, that person must live on Floor 1, where E resides.

Explanation

Floor 2 consists of Flat X and Flat Y, occupied by G and K respectively, so K lives on the exact same floor as G.

Explanation

Setting the starting origin at (0, 0), walking 8m east gives A(8, 0), turning left 6m north gives B(8, 6), turning right 12m east gives C(20, 6), turning right 18m south gives D(20, -12), and turning right 14m west gives E(6, -12). Point E(6, -12) lies in the South-East relative to (0, 0).

Explanation

Point E is located at (6, -12), making Point W located 2m east at (8, -12). Point B is located at (8, 6). Since both points have an x-coordinate of 8, the shortest distance between W and B is 6 - (-12) = 18m.

Explanation

Point A is located at (8, 0). Point D is at (20, -12), which has a larger x-value (20 > 8) and a smaller y-value (-12 < 0), positioning it to the South-East of Point A.

Explanation

The 1st, 2nd, 5th, and 6th letters from "ABOLISH" are A, B, I, and S. Using each of these letters exactly once forms only one valid English word, BIAS.

Explanation

Interchanging the first and last letters in each word produces TAC, WAJ, NUG, PAN, and YOT. Among these, PAN is the only valid English word.

Explanation

Replacing the last letter of each word with R gives CAR, JAR, GUR, NAR, and TOR. Among these, CAR and JAR are the standard meaningful words formed.

Explanation

Arranging the words in alphabetical order from left to right yields CAT, GUN, JAW, NAP, and TOY. Counting from the right end, TOY is first, NAP is second, JAW is third, and GUN is fourth.

Explanation

Applying the transformation where consonants shift by +1 and vowels change to their opposite positions (A to Z, U to F, O to L): CAT becomes D Z U, containing the vowel U. JAW becomes K Z X, containing no vowels. GUN becomes H F O, containing the vowel O. NAP becomes O Z Q, containing the vowel O. TOY becomes U L Z, containing the vowel U. Four transformed words contain at least one vowel.

Explanation

The second word from the left end is JAW, whose first letter is J (10th position in the alphabet). The third word from the right end is GUN, whose second letter is U (21st position in the alphabet). The number of letters strictly between J and U is 21 − 10 − 1 = 10 letters.

Explanation

Adding 1 to even digits and subtracting 1 from odd digits transforms 412576893 into 5, 0, 3, 4, 6, 7, 9, 8, 2. Sorting these digits in ascending order gives 0, 2, 3, 4, 5, 6, 7, 8, 9. Counting from the right end, the sixth digit is 4.

Explanation

The statement "Only a few Grey are Yellow" implies that some Grey are Yellow and some Grey are definitely not Yellow, which makes it impossible for all Grey to be Yellow. However, since all Yellow are White and some Grey are Yellow, it guarantees that those Grey elements are also White, making "Some White are Grey" definitely true.

Explanation

Since all Rings are contained in Chains and no Chains are Silver, no Silver can ever be Rings, making conclusion I false. Furthermore, the fact that some Diamonds are not Rings does not prevent Diamonds from overlapping with Chains, so conclusion II is not a definite consequence.

Explanation

The statement "Only a few House are Palace" directly implies that some House are not Palace, so conclusion I definitely follows. Additionally, there is no negative restriction between Huts and Palace, allowing the possibility that all Huts can be Palace, so conclusion II also follows.

Explanation

The coding rule shifts letters alternately by +2 and −2 positions. Applying this logic to DRIVE gives D (+2) = F, R (−2) = P, I (+2) = K, V (−2) = T, and E (+2) = G, resulting in the code FPKTG.

Explanation

Placing B at the left end (position 1) means 0 persons sit to his left, so 1 person sits to the right of C, making C sit at position 6. Two persons sit between B and D, so D is at position 4. To satisfy E sitting third to the left of G, E is at position 2 and G is at position 5. Since A is a neighbour of D and more than two persons sit between A and F, A sits at position 3 and F sits at position 7. The complete order from left to right is B, E, A, D, G, C, F. D is at position 4 and F is at position 7, so F is third to the right of D.

Explanation

The linear row arrangement from left to right is B (position 1), E (position 2), A (position 3), D (position 4), G (position 5), C (position 6), and F (position 7). B is at position 1 and G is at position 5. The persons sitting between them are E, A, and D, which totals three persons.

Explanation

In the order B, E, A, D, G, C, F from left to right, A sits at position 3, meaning there are two persons (B and E) to the left of A. To match this count on the right side, a person must have exactly two persons to their right. G sits at position 5, with C and F to his right, making two persons to the right of G.

Explanation

In the row B (1), E (2), A (3), D (4), G (5), C (6), F (7), the person sitting second from the right end is C at position 6. Moving three positions to the left of position 6 gives position 3, where A sits.

Explanation

In the arrangement B (1), E (2), A (3), D (4), G (5), C (6), F (7), B is related to A by skipping one person to the right (position 1 to position 3). Similarly, G at position 5 is related to F at position 7 by moving two places to the right. Following this same rule, E at position 2 is related to D at position 4.

Explanation

Combining M ≥ N = O < P < R and S ≤ T = U > V ≥ P > X gives the chain N = O < P ≤ V < U = T. From N < P and P < T, conclusion I (N < T) is definitely true. For conclusion II, both R and U are greater than P, so no definitive comparison can be established between R and U.

Explanation

From A < B ≥ C = F > E < D < G and I ≤ L = J ≤ F < K, combining through the common element F gives B ≥ F and F ≥ I. Combining these relations gives B ≥ I. This inequality implies that either B > I is true or B = I is true, forming a complementary pair.

Explanation

M is heavier than three persons, placing M at 3rd position in descending order of weight. Since L > J and one person is between M and J, J must be at 5th position and N at 4th position. The remaining persons align strictly as L > O > N > K, yielding the full weight order from heaviest to lightest: L > O > M > N > J > K. J is at 5th position, so four persons (L, O, M, N) are heavier than J.

Explanation

From the order of weights L > O > M > N > J > K, M is strictly lighter than O and heavier than N. Given that O weighs 70kg and N weighs 55kg, the weight of M must fall in the open range between 55kg and 70kg. Among the choices, 58kg is the only value within this range.

Explanation

The descending order of weight for the six persons is L (1st), O (2nd), M (3rd), N (4th), J (5th), and K (6th). Between L at 1st position and J at 5th position lie O, M, and N, which totals three persons.

Explanation

The arrangement consists of Row 1 (facing South): A, C, D, B from left to right, and Row 2 (facing North): P, R, S, Q from left to right. The person sitting two positions away from B (position 4) is C (position 2). The person sitting opposite C is R.

Explanation

The arrangement of persons from left to right is Row 1 (facing South): A, C, D, B and Row 2 (facing North): P, R, S, Q. Q sits opposite B, while D sits opposite S.

Explanation

The seating arrangement places A, B, P, and Q at the extreme end positions of the two parallel rows, whereas S sits at an inner position.

Explanation

In Row 1 (facing South), the positions from left to right are A, C, D, and B. For a south-facing person, left is towards the east (right side of the row). Therefore, only B sits to the left of D.

Explanation

The opposite pairs facing each other in the two parallel rows are A with P, C with R, D with S, and B with Q.

Explanation

From A < B ≤ C = D, substituting C = D gives B ≤ D, which is equivalent to D ≥ B, validating Conclusion I. Combining C = D with D > E ≥ F > G gives C > G, which is equivalent to G < C, validating Conclusion II.

Explanation

The path connecting P and V contains opposing inequality signs, so no single definite relation exists. Since U = V, Conclusion II (U ≥ P) simplifies to P ≤ V. Together with Conclusion I (P > V), the two options cover all possibilities without overlap, forming an either-or relation.

Explanation

The path between Z and B contains opposing signs, making Conclusion I indeterminate. From X = Y and Y > V, it follows that X > V, which directly contradicts Conclusion II.

Explanation

The target position from the right end is calculated as 8 + 3 = 11. Counting 11 elements from the right end of the series yields S.

Explanation

Searching for the pattern [Letter][Number][Letter] in the series identifies four valid combinations: A4S, S3L, P1Q, and Q2E.

Explanation

The numbers present in the given series are 7, 8, 5, 4, 3, 1, and 2. The prime numbers among them are 7, 5, 3, and 2. Summing these prime numbers yields 7 + 5 + 3 + 2 = 17.

Explanation

Removing all symbols ( , *, , %) from the series leaves the sequence G, 7, 8, H, F, 5, B, U, W, A, 4, S, 3, L, K, O, P, 1, Q, 2, E, N. Counting from the left end, the ninth element is W.

Explanation

Checking for the pattern Letter - Symbol - Non-Number in the series gives two matching instances: In H F, is preceded by letter H and followed by letter F. In W % A, % is preceded by letter W and followed by letter A. Thus, there are 2 such symbols (* and %).

Explanation

The letter positions in BEC follow +3, -2 (B=2 → E=5 → C=3). DGE follows +3, -2 (D=4 → G=7 → E=5). MPN follows +3, -2 (M=13 → P=16 → N=14). ORP follows +3, -2 (O=15 → R=18 → P=16). In contrast, GJK follows +3, +1 (G=7 → J=10 → K=11), making it the odd one out.

Explanation

From the given clues, F is on floor 7 and K is on floor 1. J is on floor 6 and H is on floor 2 (with 3 floors between them). L lives on prime-numbered floor 5, directly above G on floor 4. Finally, I lives on floor 3. Thus, G lives on the fourth floor.

Explanation

With F on floor 7 and K on floor 1, J must be placed on floor 6 so that H can be placed 3 floors below on floor 2. Thus, J lives on the sixth floor.

Explanation

J lives on the 6th floor and H lives on the 2nd floor. The floors situated between them are the 5th, 4th, and 3rd floors, which are occupied by L, G, and I respectively. Thus, 3 persons live between J and H.

Explanation

I lives on the 3rd floor. The floor immediately below the 3rd floor is the 2nd floor, which is occupied by H.

Explanation

The floor positions for the persons are K on floor 1, I on floor 3, L on floor 5, F on floor 7, and J on floor 6. K, I, L, and F live on odd-numbered floors, while J lives on an even-numbered floor.

Explanation

Extracting the 1st, 2nd, 3rd, and 9th letters from SELECTION gives S, E, L, and N. These letters can be rearranged to form the four-letter English word LENS. The third letter from the left end of LENS is N.