Home
Class 12
MATHS
What are the chances that no two boys ar...

What are the chances that no two boys are sitting together for a photograph if there are 5 girls and 2 boys:

A

`1//21`

B

`4//7 `

C

`2//7 `

D

`5//7`

Text Solution

Verified by Experts

Promotional Banner

Similar Questions

Explore conceptually related problems

There are 2 vans each having numbered seats, 3 in the front and 4 at the back. There are 3 girls and 9 boys to be seated in the vans. The probablity of 3 girls sitting together in a back row on adjacent seats, is

he number of ways in which 5 boys and 5 girls can be seated for a photograph so that no two girls sit next to each other is :

Three groups of children contain respectively 3 girls and 1 boy , 2 girl and 2 boys , 1 girl and 2 boys . One child is selected at random from each group.The chance that the three selected children consists of one girl and 2 boys is

An experiment consists of recording boy-girl composition of families with 2 children. What is the sample space if we are interested in knowing whether it is a boy or a girl in the order of their births ?

An experiment consists of recording boy-girl composition of families with 2 children. What is the sample space if we are interested in knowing whether it is a boy or girl in the order of their births?

In how many ways can 5 boys and 3 girls sit in a row so that no two girls are together ?

There are 20 girls and 15 boys in a class. What is the ratio of nuymber of girls to the number of boys?