IBPS RRB Clerk Prelims 2022 Reasoning Questions with Solutions

Explanation

Counting backward from the right end of the 31-element series, the 1st element from the right is 4, the 2nd is Y, the 3rd is 4, and continuing step by step, the 19th element from the right end is 3.

Explanation

To satisfy the condition of a symbol immediately preceded by a number and immediately followed by a vowel, we look for the pattern Number → Symbol → Vowel. Scanning the series gives only one such instance: 1 | A, where 1 is a number, | is a symbol, and A is a vowel.

Explanation

Looking for alphabets bounded by identical numbers on both sides, G is preceded and followed by 2 (2 G 2), and Y is preceded and followed by 4 (4 Y 4). Thus, there are two such alphabets in the series.

Explanation

Removing all numeric digits leaves the sequence M D % N G V # F S B H @ U A Y. Counting 11 elements from the right end gives S.

Explanation

Subtracting 2 from each odd digit (7→5, 9→7, 7→5, 5→3, 5→3) and adding 1 to each even digit (4→5, 6→7, 8→9, 2→3, 8→9) transforms 4679758258 into 5757539339. In this new number, the digit 3 appears three times and the digit 5 appears three times. Therefore, two digits are repeated more than two times.

Explanation

From the given conditions, F goes on Monday and A on Friday (3 days between them). G goes on Sunday (1 day from A) and B goes on Thursday (2 days from G). Since 1 day separates B and E, E goes on Saturday. Place D on Tuesday and C on Wednesday to satisfy D immediately before C and D not immediately after G. Thus, C goes to the market on Wednesday.

Explanation

The complete arrangement of market visits from Monday to Sunday is F, D, C, B, A, E, G. Since E goes to the market on Saturday, A goes to the market on Friday, which is immediately before E.

Explanation

With F on Monday, A on Friday, and G placed one person away from A without violating any other conditions, G goes to the market on Sunday.

Explanation

In the arrangement F (Monday), D (Tuesday), C (Wednesday), B (Thursday), A (Friday), E (Saturday), G (Sunday), A goes to the market on Friday, E goes immediately after A, one person goes between A and C, and A goes immediately after B. Consequently, none of the specific assertions regarding A are true.

Explanation

F goes to the market on Monday and E goes to the market on Saturday. The four persons who go to the market on the intervening days from Tuesday through Friday are D, C, B, and A.

Explanation

Arranging the six persons in descending order based on height gives C > D (150 cm) > E > F > A (130 cm) > B. Since E is shorter than D (150 cm) and taller than F, who is taller than A (130 cm), the height of E must lie strictly between 130 cm and 150 cm, making 135 cm the only valid height.

Explanation

From the clues, D is 150 cm but not the tallest, so someone is taller than D. E is taller than F and shorter than D, so D > E > F. F is taller than A (130 cm), and A is taller than B. Thus, the order from tallest to shortest is C > D > E > F > A > B, making C the tallest person.

Explanation

H lives on floor 1 with Melon and D lives on floor 5 since 3 persons live between them and D is above H. E lives on floor 3 with Papaya. J lives on floor 4 with Mango. G cannot live on floor 2, placing G on floor 6 with Apple and F on floor 2 with Grapes.

Explanation

H lives on floor 1 and D lives on floor 5. E lives on floor 3 with Papaya and J lives on floor 4 with Mango. Since G cannot live on floor 2 immediately above H, G must live on floor 6 and like Apple.

Explanation

H is on floor 1, E on floor 3, D on floor 5, and G on floor 6. The 2nd floor likes Grapes, leaving floor 4 as the only possible location for J, who likes Mango.

Explanation

The floor arrangement from top to bottom is floor 6 (G), floor 5 (D), floor 4 (J), floor 3 (E), floor 2 (F), and floor 1 (H). Therefore, D on floor 5 lives immediately above J on floor 4.

Explanation

The fruit assignments are floor 6 (G - Apple), floor 5 (D - Banana), floor 4 (J - Mango), floor 3 (E - Papaya), floor 2 (F - Grapes), and floor 1 (H - Melon). Thus, D likes Banana.

Explanation

From the given expression Z ≥ S > O = T > X = V, the strict inequality signs > guarantee that Z > V (or V < Z). Thus, conclusion I is strictly true, while conclusion II (V = Z) is false.

Explanation

Tracing from L to G gives L = C < B = E ≥ F > G. Because opposite relational operators (< and ≥) occur in the path between L and G, no definite relation can be established. Neither conclusion is derived from the statement.

Explanation

The inequality path from E to M is E < P ≤ B ≤ N < M, which clearly establishes E < M, meaning M > E is true. For conclusion II, the path from K to O contains both ≥ and < signs, making the relationship between O and K indeterminate.

Explanation

The arrangement contains 30 elements in total. Counting from the right end, the 17th element is N at index 14 from the left. Moving 9 positions to the right from the 17th element from the right corresponds to finding the 8th element from the right end (17 − 9 = 8). Counting 8 positions from the right end gives the element A.

Explanation

The sequence follows a pattern based on positions in the string. The first element of each group starts at indices 2, 7, 12, and 17, advancing by 5 positions each time. Therefore, the missing group starts at index 22, which is 2. The second element in each group is obtained by skipping one element to the right, giving H at index 24. The third element is immediately adjacent to the second element, giving 3 at index 25. Thus, the missing term is 2 H 3.

Explanation

In the first four groups, the structure follows a specific positional relation: taking a central character, moving two positions to the right for the second character, and two positions to the left for the third character. For example, J is at index 6, O is at index 8 (+2), and T is at index 4 (−2). Similarly, 3 is at index 25, 5 is at index 27 (+2), and A is at index 23 (−2). The combination 8 @ @ breaks this rule because the element 8 is at index 12, while the adjacent @ characters are at index 10 (−2) and index 13 (+1), which does not match the uniform ±2 pattern.

Explanation

We search for the pattern [Number] [Vowel] [Consonant] in the given string. First instance: E is preceded by 4 (number) and followed by T (consonant), forming 4 ET. Second instance: O is preceded by 9 (number) and followed by B (consonant), forming 9 OB. Third instance: A is preceded by 2 (number) and followed by H (consonant), forming 2 AH. No other vowel satisfies both conditions simultaneously, making the total count equal to three.

Explanation

We look for the specific sequence [Consonant] [Number] [Symbol] in the arrangement. First instance: The number 7 is preceded by the consonant V and followed by the symbol , forming V 7 . Second instance: The number 5 is preceded by the consonant Y and followed by the symbol , forming Y 5. No other number satisfies being preceded by a consonant and followed by a symbol, so there are two such numbers.

Explanation

Arranging the eight designations in order of seniority from 1 to 8 gives: 1-HR Manager, 2-Head of Marketing, 3-Head of Design, 4-Graphic Designer, 5-Designer, 6-Customer Service Manager, 7-Communication Officer, 8-Buyer Assistant. P cannot be at position 1 and must be senior to U with more than 3 persons between them, placing P at position 3 and U at position 8. T is just junior to P, so T is at position 4. Two designations exist between S and T with S close to U, placing S at position 7. R is just senior to V and V is senior to P, placing R at position 1 and V at position 2. Neither V nor Q is a Designer, so Q is at position 6 and W is at position 5. Thus, V is the Head of Marketing.

Explanation

The designations from senior to junior are 1-R (HR Manager), 2-V (Head of Marketing), 3-P (Head of Design), 4-T (Graphic Designer), 5-W (Designer), 6-Q (Customer Service Manager), 7-S (Communication Officer), and 8-U (Buyer Assistant). Statement I is true as R holds position 1. Statement II is true as S holds position 7 as Communication Officer. Statement III claims U is just senior to S, but U holds position 8 and is therefore just junior to S, making statement III false.

Explanation

The established order of designations from position 1 to 8 is R (1-HR Manager), V (2-Head of Marketing), P (3-Head of Design), T (4-Graphic Designer), W (5-Designer), Q (6-Customer Service Manager), S (7-Communication Officer), and U (8-Buyer Assistant). In four pairs, the person is matched with the designation directly below their own position: V (2) with Head of Design (3), P (3) with Graphic Designer (4), W (5) with Customer Service Manager (6), and S (7) with Buyer Assistant (8). The combination W with Communication Officer pairs position 5 with position 7, skipping position 6, and thus does not fit the pattern.

Explanation

The order of designations from highest to lowest rank is R (1-HR Manager), V (2-Head of Marketing), P (3-Head of Design), T (4-Graphic Designer), W (5-Designer), Q (6-Customer Service Manager), S (7-Communication Officer), and U (8-Buyer Assistant). Since Q occupies position 6, the persons who hold lower designations than Q are S at position 7 and U at position 8. Therefore, exactly two persons are junior to Q.

Explanation

The designations in order from 1 to 8 are HR Manager (1-R), Head of Marketing (2-V), Head of Design (3-P), Graphic Designer (4-T), Designer (5-W), Customer Service Manager (6-Q), Communication Officer (7-S), and Buyer Assistant (8-U). Graphic Designer corresponds to position 4. The designation immediately junior to Graphic Designer is Designer at position 5, which is held by W.

Explanation

Positions around the table are numbered 1 to 8 in clockwise order, where corner positions are 1, 3, 5, 7 and side middle positions are 2, 4, 6, 8. Placing corner seat B at position 1 puts H at position 4 because B sits third to the right of H facing center. G sits at position 7 (one person between B and G), A sits at position 2 (two persons between G and A), C sits at position 8 (second to the right of A), F sits at position 3 (two persons between C and F), D sits at position 6, and E sits at position 5. The person seated opposite to H at position 4 is at position 8, who is C.

Explanation

In the clockwise arrangement facing center, positions 1 to 8 are occupied by B, A, F, H, E, D, G, and C respectively. Position 2 is occupied by A. Facing the center from position 2, moving clockwise gives the immediate left position, which is position 3 occupied by F.

Explanation

In the eight-person rectangular seating arrangement, A occupies position 2 and D occupies position 6. Counting clockwise yields three persons between them (F, H, E), and counting counter-clockwise yields three persons between them (G, C, B). Thus, exactly three persons sit between A and D.

Explanation

D is seated at position 6 and F is seated at position 3 facing center. Moving counter-clockwise from D (to the right of D facing center), position 5 is first right, position 4 is second right, and position 3 is third right. Therefore, F sits third to the right of D.

Explanation

G is seated at corner position 7 facing center. Moving counter-clockwise (to the right facing center), the adjacent position is position 6, which is occupied by D. Thus, D sits immediate right of G.

Explanation

The original sequence of numbers from left to right is 514, 658, 245, 732, 321. Arranging these numbers in descending order gives 732, 658, 514, 321, 245. Comparing position by position, only 658 remains at the second position from the left.

Explanation

When the first and third digits of a three-digit number are interchanged, the new unit digit becomes the original first digit. A number is even if its unit digit is even. Checking the first digits of the given numbers (514, 658, 245, 732, 321), only 658 (first digit 6) and 245 (first digit 2) have even first digits. After interchange, they become 856 and 542, resulting in two even numbers.

Explanation

Interchanging the first and second digits of each number yields: 514 becomes 154 658 becomes 568 245 becomes 425 732 becomes 372 321 becomes 231 Sorting the transformed numbers in descending order gives 568, 425, 372, 231, and 154. The third highest number is 372, which corresponds to the original number 732.

Explanation

From the sequence 514, 658, 245, 732, 321: The 2nd digit of 3rd number from left (245) is 4. The 1st digit of 2nd number from right (732) is 7. The 3rd digit of 1st number from left (514) is 4. Sum = 4 + 7 + 4 = 15.

Explanation

From the given sequence 514, 658, 245, 732, 321: The 2nd number from the left is 658. The 5th number from the left is 321. Difference = 658 - 321 = 337.

Explanation

G is the sister of K, and N is the father of both K and G. G is married to E, and together they have two children: D, who is their only son, and C, who must therefore be their daughter. Since C is married to F, F is C's husband and consequently the brother-in-law of D.

Explanation

K and G are siblings, children of N. J is the daughter of K, and C is the daughter of G. Since their parents K and G are brother and sister, C and J belong to the same generation as first cousins.

Explanation

G and E are the parents of D. G is the sister of K, which makes K the brother of D's mother. Therefore, K is the uncle of D.

Explanation

The given number 2349759648745 consists of 13 digits. Arranging these digits in descending order from left to right yields 9987765544432. Comparing the original sequence and the descending sequence position by position shows that the digit 7 at the 5th position and the digit 4 at the 9th position remain in the exact same positions. Thus, two numerals remain unchanged.

Explanation

N sits 4th from the left end facing North. R sits 2nd to the left of N at position 2 facing South. B sits at position 1 facing North to the immediate right of R. A sits at position 3 facing South, 2nd to the right of B. L sits at position 5 facing North, 2nd to the left of A. E sits at position 6 facing North to the immediate right of L. Thus, position 6 occupied by E is second to the right of N at position 4.

Explanation

From left to right, the arrangement of the eight positions is B at 1, R at 2, A at 3, N at 4, L at 5, E at 6, D at 7, and T at 8. Between B at position 1 and E at position 6 sit four persons, namely R, A, N, and L.

Explanation

R is at position 2 and L is at position 5, so two persons (A and N) sit between them. Similarly, N is at position 4 and D is at position 7, so two persons (L and E) sit between them.

Explanation

A sits at position 3 facing South. Facing South means left corresponds to moving towards the right end of the row. Moving four places to the left from position 3 leads to position 7, which is occupied by D.

Explanation

T sits at position 8 facing North, and N sits at position 4 facing North, so both T and N face the same direction. R sits at position 2 and T sits at position 8, meaning five persons sit between them, which is more than three persons. Therefore, both statements are true.

Explanation

The premise states that all Pfizer are Covishield and some SputnikV are Pfizer. The intersection between SputnikV and Pfizer must also be contained entirely within Covishield. Therefore, at least some SputnikV are definitely Covishield, making Conclusion I logically valid. Conclusion II does not necessarily follow because SputnikV could potentially be entirely contained within Covishield.