MyQuestionIcon

2

You visited us 2 times! Enjoying our articles? Unlock Full Access!

Ordered Pair

In how any wa...

Question

In how any ways can $11$ members of a committee sit on a round tables so that Secretary and Deputy Secretary sit on the either side of the president?

Open in App

Solution

Take (president + secretaries) as 1 unit.
Now total ways $= 12 + 1 = 13!$
But , Secretaries among them can exchange in 2 way
Total possibilities $= 13! \times 2!$

Suggest Corrections

thumbs-up

0

Similar questions

Q. A committee of

15

members sit around a table . In how many ways can they be seated if the president and vice president sit together ?

Q. A committee of

15

member sits around a table. In how many ways can they seated if the 'President', vice-President and Prime-minister sit together?

Q. In how many ways can a club consisting of

20

people choose a president, a secretary, and a treasurer?

Q. Out of eight crew members three particular members can sit only on the left side. Another two particular members can sit only on the right side. Find the number of ways in which the crew can be arranged so that four men can sit on each side.

Q. In how many ways can a president, a manager and a secretary be chosen from among

8

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Ordered Pair

MATHEMATICS

Watch in App

explore_more_icon

Explore more

Standard XII Mathematics

Join BYJU'S Learning Program

CrossIcon