Question

In how many ways can two vall os same colour be selected out of 4 black and 3 white balls

Answer 1

Answer:

hey mate your answer is...

Step-by-step explanation:

If you mean a selection with at least 1 ball of each colour then the number of ways = 4 x 2 x 2 = 16. If any colour can be absent then the number = 5 x 3 x 3 = 45.

I hope it's right answer....