Question

A box containing 9 red marbles, 12 blue marbles, 13 green marbles and 6 white marbles. What is the probability of talking out a red marble?

Answer 1

9 / 40 or 0.225

Explanation:

total marbles : 9 + 12 + 13 + 6 = 40 marbles

probability of taking red = total red marbles/ total number of marbles

probability of taking red = 9 / 40