Register Now

Login

Lost Password

Lost your password? Please enter your email address. You will receive a link and will create a new password via email.

In how many ways 4 boys and 3 girls can be seated in a row so that they are alternate.

a) 144
b) 288
c) 12
d) 256

Answer: a
Explanation: Let the Arrangement be,
B G B G B G B
4 boys can be seated in 4! Ways
Girl can be seated in 3! Ways
Required number of ways,
= 4! × 3!
= 144

Join The Discussion