Set-1 and Set-2 are two sets consisting of 10 and 12 elements respectively.

In how many ways can 5 elements be selected such that 3 elements are from Set-1 and two elements are from Set-2?

1. C(10, 3) + C(12, 2)
2. C(22,5)
3. C(10, 3) * C(12, 2)
4. 22!/5!
5. None of the above

I II III IV V

Set-1 consists of 10 elements. How many possible subsets of Set-1 are possible?

I. 2^10

II. 10^2

III. 10^10

IV. 10

V. 10!

I II III IV V