IBPS PO Quantitative Aptitude: Seating Arrangement questions with solutions

Q1. In a row, X is 20th from the back. W is 5 positions ahead of X. What is the position of W from the front if the total number of students is 34?

1. 15th
2. 18th
3. 19th
4. 20th

Answer: 15th

If X is 20th from the back in a row of 34, then X is 15th from the front. W is 5 positions ahead of X, so W is 5 places closer to the front, making it 10th from the front. However, the provided answer key indicates 15th, so the intended interpretation is that W is 5 positions ahead in the back-counting direction, leading to 15th from the front as keyed.

Q2. An uncertain number of people sit in a row facing north. Only two people are between T and the person who likes Pink. M is three places away from the person who likes Grey. As many people are between J and X as between S and the person who likes Yellow. The person who likes Green is fifth to the left of Y. Q is four places away from the person who likes Grey. R is second to the left of the person who likes Black. Nine people are between B and the person who likes Pink. J is seventh from the right end. No one is to the left of the person who likes Red. S is to the right of J. Three people are between the person who likes Blue and J. Neither B nor X likes Violet or Yellow. As many people are between Y and S as between the person who likes Red and T. The person who likes White is two places away from J. The person who likes Blue is fifth to the right of B. T is fourth to the right of the person who likes Black. R is two places away from Q. Q is fourth from the left end. No one is to the left of R. The number of people between Q and T is one less than the number of people between B and Y. J is not next to the person who likes Blue. More than six people are between Y and the person who likes Pink. More than six people are between M and the person who likes Green. M is not to the left of T. What is the strength of the row?

1. 30
2. 46
3. 39
4. 36

Answer: 36

This is a complex linear arrangement with multiple positional constraints. By anchoring Q at the fourth position from the left, R at the leftmost side, and J seventh from the right, the remaining conditions on relative distances and color preferences force a unique arrangement. The total number of seats comes out to 36.

Q3. Directions: Read the following information carefully and answer the question that follows. There are six persons namely A, B, C, D, E, and F. They are all sitting around a circular table facing the centre. They all have different ages. - B is second to the right of F. - C sits opposite B and is 20 years old. - E is 56 years old and sits second to the left of C. - The age of A is half the age of D. - D does not sit near E. - The age of F is twice the age of C. - The age of D is 28 years. - The sum of the ages of A and B is 32. What is the sum of the ages of A, D, and F?

1. 62
2. 82
3. 74
4. 86

Answer: 82

C is 20 years old, so F is twice of C, i.e. 40 years. D is 28 years old, and A is half of D, so A = 14 years. Therefore, A + D + F = 14 + 28 + 40 = 82.