Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.
MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping

4 persons have to be seated in 12 seats with no person sitting next to each other

4 persons have to be seated in 12 seats with no person sitting next to each other

Grade:

1 Answers

ruchi yadav
askIITians Faculty 27 Points
7 years ago
Step 1. 5 people can sit around a circular table in 4! ways
Step2. Consider these two poeple as one unit so 3 people + 1 Couple can sit around a round table in 3! ways
Step3. But the couple can exchange seats in 2 ways. MH or HM
So the total probability is 2. 3! / 4! = 1/2 = 50% chance

Thank You
Ruchi
Askiitians Faculty

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

ASK QUESTION

Get your questions answered by the expert for free