Question

A bag contains 40 ball out of which 15 are black then PROBELITY of a ball not black is

Answer 1

Answer:

$\frac{5}{8}$

Step-by-step explanation:

$required \: probability = 1 - \frac{15}{40} \\ \\ = \frac{40 - 15}{40} \\ \\ = \frac{25}{40} \\ \\ = \frac{5}{8}$