Question

A box contain 10 black marble, 8 white marble and 6 yellow marble. If a ball is drawn at random, what is the probability of getting black marble and white marble?

Answer 1

The probability of getting black marble:

$P_1=\cfrac{10}{10+8+6}=\cfrac{10}{24}=\cfrac{5}{12}.$

The probability of getting white marble:

$P_2=\cfrac{8}{10+8+6}=\cfrac{8}{24}=\cfrac{1}{3}.$