Sita puts 5 balls in Box A and 4 Balls in Box B.

The balls are numbered.

Box A-balls numbered 1-5

Box B-balls numbered 1-4

What is the probability that both balls have odd numbers?

I have done some working out and i think the answer may be 3/10

Can anyone please confirm this for me and tell me how they got to that answer.

Thankyou.