IBPS PO Prelims 2022 Reasoning Ability Questions with Solutions

Explanation

Interchanging the 1st digit with the 10th, 2nd with 9th, 3rd with 8th, 4th with 7th, and 5th with 6th reverses the sequence of digits in 3628179452. The new sequence is 2549718263. The 3rd digit from the left end in the new sequence is 4, and the 7th digit from the left end is 8. The difference between these digits is 8 − 4 = 4.

Explanation

N has three children: D (male), S (female), and W (female). P is the grandson of N and nephew of W, making D the father of P. Since E is the mother of P, E is the wife of D. Since D is W's brother, E is the sister-in-law of W.

Explanation

N and I are siblings, with I being N's brother. N has three children: D (son), S (daughter), and W (daughter). As the son of I's sister N, D is the nephew of I.

Explanation

Row 1 persons face South and sit in positions 1 to 6 from left to right: D (1), M (2), G (3), K (4), H (5), A (6). Row 2 persons face North and sit in positions 1 to 6 from left to right: F (1), B (2), S (3), J (4), N (5), L (6). For a person facing South at position 5 (H), immediate left is towards position 6, where A sits.

Explanation

Row 1 (facing South) has order D, M, G, K, H, A at positions 1 through 6 respectively. Row 2 (facing North) has order F, B, S, J, N, L at positions 1 through 6 respectively. A sits at position 6 in Row 1 and sits directly opposite L at position 6 in Row 2.

Explanation

Row 1 facing South from West to East is D, M, G, K, H, A. Row 2 facing North from West to East is F, B, S, J, N, L. The person facing L is A, who sits at the extreme East end of Row 1 facing South. Moving three positions to the right of A (towards the West) leads to G, who sits at position 3.

Explanation

In the solved arrangement, Row 1 (South facing) consists of D, M, G, K, H, A and Row 2 (North facing) consists of F, B, S, J, N, L at corresponding positions 1 to 6. Persons sitting at the same column position face each other directly: M and B (position 2), H and N (position 5), A and L (position 6), and G and S (position 3). K sits at position 4 while F sits at position 1, so they do not face each other.

Explanation

In Row 1, from West to East, the order of persons facing South is D, M, G, K, H, A. Since M is at position 2 and G is at position 3, they sit immediately next to each other, resulting in zero persons between them.

Explanation

Counting letter distances in both directions for the word COMPARTMENT gives four valid pairs: O and T with a gap of 4 letters (positions 2 and 7), P and R with a gap of 1 letter (positions 4 and 6), A and E with a gap of 3 letters (positions 5 and 9), and N and R in the backward direction with a gap of 3 letters (positions 10 and 6).

Explanation

The floor arrangement from floor 8 to floor 1 is U, T, W, V, P, R, S, Q. U lives on floor 8, so the person living adjacent to U is on floor 7, which is T.

Explanation

Placing P on even floor 4 means V is on floor 5 so that four persons live above P and four below V. T lives two floors above V on floor 7, Q lives on floor 1, R lives midway between Q and V on floor 3, and S lives adjacent to R on floor 2.

Explanation

With P residing on floor 4, the floors below floor 4 are floors 3, 2, and 1. These three floors are occupied by R, S, and Q respectively, meaning exactly three persons live below P.

Explanation

The floor distribution from floor 8 down to 1 is U, T, W, V, P, R, S, Q. In pairs W-V (floors 6 and 5), S-Q (floors 2 and 1), U-T (floors 8 and 7), and P-R (floors 4 and 3), the first person lives directly above the second person. V lives on floor 5 and T lives on floor 7, so V lives two floors below T.

Explanation

T lives on floor 7 and R lives on floor 3. The floors located between them are floors 4, 5, and 6, which are occupied by P, V, and W respectively, making a total of three persons.

Explanation

From the statements, C > D and D > G can be combined directly to get C > G, making Conclusion I true. For Conclusion II, comparing A and V involves the relations A ≥ D, D < C, and C ≥ V, where opposite inequality signs prevent forming a direct relationship between A and V.

Explanation

In the inequality chain, E = K ≤ M ≤ L simplifies to E ≤ L, which means L ≥ E, so Conclusion I is true. Similarly, P > Y ≥ R ≥ E = K simplifies to P > K, so Conclusion II is also true.

Explanation

Based on the given conditions, the row contains 14 positions facing North from left to right: 1(), 2(), 3(A), 4(G), 5(C), 6(P), 7(T), 8(), 9(B), 10(R), 11(), 12(S), 13(_), 14(Y). G is at position 4 and the person sitting to the immediate right of R is at position 11. Between position 4 and position 11 sit 6 persons at positions 5, 6, 7, 8, 9, and 10.

Explanation

In the 14-person linear arrangement, G is at position 4, P is at position 6, R is at position 10, S is at position 12, and Y is at position 14. Since position 14 is the extreme right end of the row, Y is the only one among them sitting at an extreme end.

Explanation

G is at position 4 and T is at position 7, so exactly 2 persons sit between them. Between B (position 9) and S (position 12), there are 2 persons. Between R (position 10) and T (position 7), there are also 2 persons.

Explanation

R is located at position 10 in the row. Counting 3 positions to the left gives position 7, which is occupied by T. Counting 3 positions to the left of T gives position 4, which is occupied by G.

Explanation

Combining the given statements gives the inequality chain P > Q = M > B = A ≥ J and B ≥ C < D. From P > B = A, it directly follows that P > A, which is equivalent to A < P, making conclusion I true. However, comparing J and C via B gives J ≤ B and C ≤ B, which yields no definite relation between J and C. Therefore, only conclusion I is true.

Explanation

Since A = B, conclusion II (A ≤ K) is equivalent to B ≤ K. Combining the path between K and B gives K > J ≤ B, which means no definite relation can be established between K and B. Because both conclusions are indefinite on their own and cover all possible mathematical relations between B and K (either B > K or B ≤ K), either conclusion I or II must be true.

Explanation

Combining the inequality statements yields R > Z > W > V, which directly gives R > V, making conclusion I true. Similarly, combining Y ≥ W ≥ X gives Y ≥ X, which is equivalent to X ≤ Y, making conclusion II true. Therefore, both conclusions I and II are true.

Explanation

Calculating the ages in base year 2021 gives 1971 (50), 1975 (46), 1982 (39), 1988 (33), 1994 (27), 1999 (22), 2003 (18), and 2006 (15). Since B is the second youngest, B was born in 2003. H is 4 years older than B, so H was born in 1999. Three persons were born between H and D, placing D in 1975. Four persons are between D and B, so four persons must be born after A, placing A in 1988. K and G are equidistant in age from A, placing K in 1982 and G in 1994. C was born in an even year, so C was born in 2006, giving C an age of 15 years.

Explanation

Arranging the birth years from oldest to youngest gives F (1971), D (1975), K (1982), A (1988), G (1994), H (1999), B (2003), and C (2006). Since B was born in 2003 and H was born in 1999, H is the person directly older to B.

Explanation

A was born in 1988 (age 33) and G was born in 1994 (age 27), giving an age difference of 6 years. Since the age difference between K and A equals the age difference between G and A, K must be 6 years older than A. Therefore, K was born in 1982 (age 39).

Explanation

K was born in 1982, so K's age in 2021 is 39 years. C was born in 2006, so C's age in 2021 is 15 years. The difference in their ages is 39 - 15 = 24 years.

Explanation

G was born in 1994. The persons born after 1994 are H (1999), B (2003), and C (2006). Consequently, there are exactly three persons younger than G.

Explanation

Subtracting 2 from each odd digit and adding 1 to each even digit in 97247563286 transforms the digits into 7, 5, 3, 5, 5, 3, 7, 1, 3, 9, 7. Arranging these digits in ascending order from right to left places the largest digit at the leftmost position, producing the sequence 9, 7, 7, 7, 5, 5, 5, 3, 3, 3, 1 from left to right. The fourth digit from the left end is 7.

Explanation

The statement 'Only grey is blue' means All blue are grey and Blue cannot intersect with any set other than Grey, which makes conclusion I impossible. Furthermore, 'Only a few black is white' allows the possibility that all elements of White lie inside Black, so conclusion II is false. Therefore, neither conclusion follows.

Explanation

The statement "Only a few cycle is bus" means that some cycles are buses and some cycles are not buses, which directly makes Conclusion I true. The statement "Some train is not cycle" means at least one train is outside the cycle set, making it logically impossible for all trains to ever be inside cycle, so Conclusion II also definitely follows.

Explanation

There is no direct relation given between Hindi and History, so neither conclusion follows individually. However, since the subject and predicate are identical and they form a complementary pair of "Some" and "Some not", exactly one of them must be true.

Explanation

Arranging the boxes from top (7) to bottom (1) gives A (7), E (6), B (5), D (4), G (3), C (2), and F (1). Three boxes (G, C, F) are placed below box D.

Explanation

Based on the arrangement from top to bottom—A (7), E (6), B (5), D (4), G (3), C (2), F (1)—there are 3 boxes (B, D, G) between box E and box C.

Explanation

In the top-to-bottom stack sequence A (7), E (6), B (5), D (4), G (3), C (2), F (1), box G is located immediately above box C.

Explanation

In the stack arrangement from position 7 to 1, two boxes (G and C) lie between D (4) and F (1). Similarly, exactly two boxes (C and F) lie below box G (3).

Explanation

Arranging alphabetically from bottom (1) to top (7) places A, B, C, D, E, F, G at positions 1 through 7 respectively. Comparing this with the original sequence F (1), C (2), G (3), D (4), B (5), E (6), A (7) shows that only box D stays in position 4.

Explanation

Taking point A as origin (0, 0), the path traces B at (0, -6), C at (6, -6), D at (6, -4), E at (11, -4), F at (11, 0), and G at (8, 0). Relative to G (8, 0), point D (6, -4) lies 2m west and 4m south, which is South-West.

Explanation

Using the distance formula d = √[(x₂ - x₁)² + (y₂ - y₁)²] between point B (0, -6) and point D (6, -4): d = √[(6 - 0)² + (-4 - (-6))²] = √[36 + 4] = √40 = 2√10 m.

Explanation

With starting point A at (0, 0) and final point G at (8, 0), both points lie on the same horizontal axis. The shortest straight-line distance is |8 - 0| = 8m.

Explanation

Positions around the table in clockwise order are 1: H (Middle, Inside), 2: K (Corner, Outside), 3: F (Middle, Outside), 4: D (Corner, Inside), 5: P (Middle, Outside), 6: L (Corner, Outside), 7: G (Middle, Inside), and 8: E (Corner, Inside). F sits at position 3, and the person sitting directly opposite to F at position 7 is G.

Explanation

Based on the given conditions, H sits at a middle position of a side, and P sits directly opposite H at another middle position. Since P sits third to the left of K and two persons sit between P and E, K and E sit at corner positions. E faces D diagonally across the table, meaning both E and D face inside. Since D and H face the same direction, H also faces inside.

G and L sit adjacent to each other such that each sits to the immediate right of the other. As G faces inside, L must face outside. To fulfill the four-inside and four-outside facing condition, P, L, K, and F face outside while H, E, G, and D face inside.

Arranging all eight persons clockwise around the table yields: H (middle, inside), E (corner, inside), L (middle, outside), G (corner, inside), P (middle, outside), D (corner, inside), F (middle, outside), and K (corner, outside).

Since P faces outside, moving clockwise from P is to P's left. L is located two places clockwise from P, placing L second to the left of P.

Explanation

Arranging the eight persons around the square table at middle positions (1, 3, 5, 7) and corner positions (2, 4, 6, 8) in clockwise order:

H sits at middle position 1. Since three persons sit between H and P, P sits opposite H at middle position 5.

P sits third to the left of K, which places K at corner position 8 facing outside.

Two persons sit between P and E, placing E at corner position 2. E faces D, so E faces inside towards D at corner position 6.

G and L sit to the immediate right of each other with G facing inside and L facing outside, which places G at corner position 4 and L at middle position 3. The remaining middle position 7 is occupied by F.

Since four persons face outside (K, P, F, L), the remaining four face inside (E, G, D, H).

To find the required position: K faces outside, so the person second to the right of K (moving clockwise) is E at position 2. E faces inside, so the person sitting immediate right of E (moving counter-clockwise) is H at position 1.

Explanation

F originally occupies position 3, which is adjacent to position 2 occupied by K and position 4 occupied by D. When E and F interchange positions, E moves to position 3, making D sit adjacent to E.

Explanation

P, F, L, and K all face outside the square table, whereas G faces inside the table.

Explanation

The complete seniority hierarchy from senior to junior is CFO (R), CEO (P), MD (U), Manager (V), Team Leader (T), Executive (S), and Trainee (Q). Thus, P works as CEO.

Explanation

The complete seniority hierarchy from senior to junior is CFO (R), CEO (P), MD (U), Manager (V), Team Leader (T), Executive (S), and Trainee (Q). Thus, U holds the designation of MD.

Explanation

The hierarchy from senior to junior is CFO (R), CEO (P), MD (U), Manager (V), Team Leader (T), Executive (S), and Trainee (Q). S is at Executive rank, so only Q (Trainee) is junior to S, giving a total of one person.

Explanation

In the designation hierarchy, V holds the Manager rank, and the person immediately senior to Manager is MD (U). Since P is CEO, the person immediately junior to P is MD (U).

Explanation

Comparing the given coded sentences, 'Star' is present in all four statements and corresponds to 'bnm'. 'Coffee' is present in the second and third statements, mapping to 'poz'. 'Meeting' is present in the first and third statements, mapping to 'dgv'. Eliminating these from the third statement 'Meeting Coffee Line Star' (coded as 'dgv poz kda bnm') leaves 'Line' coded as 'kda'.