Question

In how many ways can nine members of committee sit at the round table so that secretary and the joint secretary are always the neighbours of the president? 

Answer 1

Answer:

1440

Explanation:

Members except president, secretary and joint secretary = 9−3=6

Their arrangement = 6!

No. of arrangements of secretary and joint secretary at wto places

=2!=2

Total arrangement =2×6!

2 x 6! = 1440

Answer 2

1440 answer hope this helps