EMCO Q.1
0. Ramesh has 6 friends. In how many ways can he invite one or more of them at dinner ?
- Option : C
- Explanation :
Total number of possibilities,
If he calls one friend: 6 ways
If he calls two friends: 6C2
If he calls three friends: 6C3
Similarly solving up to the case where he can call all the 6 friends...
Total number of cases will be 63
