# Let A and B be two sets containing four and two elements respectively.

Question:

Let $\mathrm{A}$ and $\mathrm{B}$ be two sets containing four and two elements respectively. Then the number of subsets of the set $\mathrm{A} \times \mathrm{B}$, each having at least three elements is :

1. 275

2. 510

3. 219

4. 256

Correct Option: , 3

Solution: