Click to Chat

1800-2000-838

+91-120-4616500

CART 0

• 0

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
`        In how many ways 7 persons can be selected from 5 indian, 4 british and 2 chinise, if atleast 2 are to be selected from each country.`
7 years ago

22 Points
```										Hi Rajat,
At least 2 persons have to be slected form each country so :
ways of selecting 2 persons from 5 indians is 5C2
ways of selecting 2 persons from 4 british is 4C2
ways of selecting 2 persons from 2 chinese is 2C2
Thus ways of slecting 6 persons form entire group is   5C2 * 4C2 * 2C2
Now 1 person has to be selected from remaing 3 Indians and 2 british and 0 chinese
possible way of selceting 1 person is 5C1
Thus final answer to select 7 persons is 5C2 * 4C2 * 2C2 *  5C1
Puneet

```
7 years ago
Rajat Goel
31 Points
```										hey I have answer booklet (not solution). And in it answer given is "100".

My one frnd has suggested me the solution as:
you have to choose two chinese forced, at least two british and two indians, and one between british or indian. so you have
1*4C2*4C2*(3+2)=180    the last term: 3 indians+2 british....

But its also wrong
```
7 years ago
Think You Can Provide A Better Answer ?

## Other Related Questions on Algebra

View all Questions »
• Complete JEE Main/Advanced Course and Test Series
• OFFERED PRICE: Rs. 15,900
• View Details