Question

two dices are thrown simultaneously. What is the probability that

(a). 5 will not come up on either of them.

Answer 1

Let A be the favorable outcomes that 5 will not come up on either of them then,

I.e.

$n\left(A\right)=25$

$n\left(S\right)=36$

Then, probability $=\frac{25}{36}$

Hence, this is the answer.