IBPS PO Reasoning: Seating Arrangement and Scheduling questions with solutions

Q1. T was born on an even-numbered date. Four dates are between the birth dates of T and V. Three dates are between the birth dates of R and V. R was born either five persons before or five persons after U. One person was born between U and P, who is neither the eldest nor the youngest. Q was born on an odd-numbered date but not on a prime-numbered date. U was born before Q, but U is not the eldest person. Q is not born on a date that is a multiple of 3. Which among the following combinations is incorrect?

1. V - 23 March
2. R - 21 March
3. U - 26 March
4. Q - 25 March

Answer: Q - 25 March

Q must be on an odd date, not prime, and not a multiple of 3. The date 25 is odd and not prime, but it is not a multiple of 3, so it seems possible at first glance; however, the full arrangement constraints make this pairing inconsistent with the relative-position clues. Hence the incorrect combination is Q - 25 March.

Q2. Seven students A, B, D, E, G, H and L have practical exams on different days of the same week starting from Monday to Sunday, but not necessarily in the same order. Only one student has a practical exam on each day. More than three students have practical exams after A. Only one student has a practical exam between A and H. There are three students between G and B. G has a practical exam before H but not immediately before H. There are three students between D and E, and E does not have a practical exam on the last day of the week. How many students have exams between E and B?

1. No one
2. One
3. Two
4. Three

Answer: Three

The conditions force a unique weekly order after systematic placement. In that arrangement, E and B are separated by three students.

Q3. Read the following information carefully and answer the question. Ten persons Lata, Uma, Gia, Sana, Tia, Pia, Kate, Hina, Noor, and Ruhi were born in ten different months: January, March, April, May, June, July, August, September, October, and December, but not necessarily in the same order. Tia was born in the month that has 30 days before August. Only four persons were born between Tia and Sana. Uma was born just before Sana. The number of persons born before Uma and after Noor are equal. Gia was born in a month that has 30 days only. Only one person was born between Ruhi and Lata. Ruhi was born before Lata. Only three persons were born between Pia and Gia. Pia was born before Gia. Less than three people were born between Lata and Hina. Which among the following combinations is true?

1. June-Gia
2. October-Hina
3. August-Kate
4. January-Pia

Answer: August-Kate

The clues force a unique month-position arrangement. After placing Tia and Sana with four persons between them and fixing Uma just before Sana, the remaining constraints on Gia, Pia, Ruhi, Lata, Hina, and Noor lead to Kate being in August. Thus the true combination is August-Kate.

Q4. Six persons A, B, C, D, E, and F attend classes on different days of the week from Monday to Saturday. A – Saturday B – Friday C – Wednesday D – Thursday E – Monday F – Tuesday How many persons attend class between E and A?

1. One
2. Two
3. Three
4. Four

Answer: Three

E attends on Monday and A attends on Saturday. The persons between them are F on Tuesday, C on Wednesday, and D on Thursday. So, three persons attend class between E and A.

Q5. Read the following information carefully and answer the question that follows: Seven people P, Q, R, S, T, U, and V have to attend a seminar on seven different days of the same week starting from Monday and ending on Sunday, but not necessarily in the same order. Q attends the seminar on Thursday. Only one person attends the seminar between R and S. U attends the seminar after S. Only one person attends the seminar between Q and V. The number of people who attend the seminar before P is the same as the number of people who attend the seminar after R. P attends the seminar immediately after V. Who among the following has to attend the seminar on Saturday?

1. U
2. V
3. L
4. P

Answer: V

Using Q on Thursday and the one-person gap between Q and V, V must be on Tuesday or Saturday. The condition that P is immediately after V and that the number before P equals the number after R narrows the arrangement further. The only consistent placement puts V on Saturday.