Is There a Way One Can Grow More From the Same Land?

Ways Of Growing More Crops In Same Land

A man has 10 friends, in how many ways he can invite one or more of them to a party?

There are 6 roads between A & B and 4 roads between B & C. (i) In how many ways can one drive from A to C by way of B? (ii) In how many ways can one drive from A to C and back to A, passing through B on both trips? (iiiI In how many ways can one drive the circular trip described in (ii) without using the same road more than once?

A man has 7 friends. In how many ways can be invite one or more of them to a party ?

Ramesh has 6 friends. In how many ways can he invite one or more of them at a dinner

Ramesh has 6 friends.In how many ways can be invite one or more of them at a dinner? (A) 61(B)62(C)63(D)64