Bissoy.com
Doctors Medicines MCQs Q&A

In how many ways can 10 boys be seated in a row having 28 seats such that no two friends occupy adjacent seats?

In how many ways can 10 boys be seated in a row having 28 seats such that no two friends occupy adjacent seats? Correct Answer 19P10

First let us take the 18 unoccupied seats. They create 19 slots i.e., one on the left of each seat and one on the right of the last one. So we can place the 10 boys in any of these 19 slots that are, 19P10 ways.

Related Questions

Five people A, B, C, D and E are seated about a round table, Every chair is spaced equidistant from adjacent chairs. 1. C is seated next to A 2. A is seated two seats from D 3. B is not seated next to A On the basis of above information, which of the following must be true? 1. D is seated next to B 2. E is seated next to A 3. D and C are separated by two seats Select the correct answer using the code given below:
Five people A, B, C, D and E are seated around a round table. Every chair is spaced equidistant from adjacent chairs. (i) C is seated next to A. (ii) A is seated two seats from D. (iii) B is not seated next to A. Which of the following must be true? (I) D is seated next to B. (II) E is seated next to A. Select the correct answer from the codes given below:
Five people A, B, C, D, and E are seated about a round table. Every chair is spaced equidistant from adjacent chairs. C is seated next to A; A is seated two seats from D; and B is not seated next to A. Which of the following must be true?  (I) D is seated next to B (II) E is seated next to A
In how many ways can seven friends be seated in a row having 35 seats, such that no two friends occupy adjacent seats?
During a meeting, seven managers of a company are seated around a circular table. It is known that: T is not the finance manager and is seated to the left of S, a production manager. R is seated between Q and S and he is a quality control manager. The finance manager is seated to the right of Q. V is seated to the right of the finance manager. U an operations manager is seated between V and T. The managers are identified as P, Q, R, S, T, U and V. The finance manager is seated how far from the operations manager?
Six friends are seated around a circular table. It is known that L is seated between P and N; Q is seated to the right of O; and M is seated between N and O. Find the friend who is seated between L and Q.
Five persons namely, Yasin, Arafat, Rasheed, Ali and Rehman are to be seated in five out of the six seats numbered from 1 to 6. The following table provides information about the series numbers of the seats (given in the table under their name) on which each of the mentioned friends can possibly sit. Names Yasir Arafat Rasheed Ali Rehman Seat No. 1 2 or 3 2, 3 or 4 4 or 5 5 to 6   If one of the seats numbered 2 or 4 is unoccupied, then the number of different ways five mentioned persons can be seated is
Study the given information carefully and answer the question that follows. In a boat, people are sitting in two parallel rows, with five people each in a row, in such a way that there is equal distance between adjacent persons. In the first row, Mani, Nani, Alex, Puri and Tuli are seated (not necessarily in the same order) and all of them are facing south. In the second row, Sharma, Atkin, Putin, Neha and Priya are seated (not necessarily in the same order) and all of them are facing north. Therefore, people in the opposite rows face each other in this arrangement. Priya sits third to the right of Atkin. Atkin sits at one of the extreme ends. Sharma sits second to the left of Priya. The person facing Sharma sits to the immediate right of Nani. Puri sits second to left of Nani. Mani is not an immediate neighbour of Nani. Only two people sit between Mani and Alex. Neither Nani nor Mani faces Neha. Who among the following is facing Tuli?
In how many ways can 6 boys be seated in a row such that two boys (Ashok and Pankaj) are never seated together.
During a party, a game is being played. For the game 9 people from A to I (mix of boys and girls) have to stand in vertical row. Boys are wearing Red t-shirts and girls are wearing Pink t-shirts. The row starts with pink t-shirt. Boys and girls stand alternately in the row. Each position in the row can occupied by one person only 1) A stands seven places before B. 2) Third pink t – shirt is C. 3) Second boy after C is D. 4) Fourth place in the row is occupied by E. 5) F stands ahead of A. 6) G stands between C and A 7) I is girl Which of the following is a pair of boys?