Question

Question 1: A hat contains 40 marbles. Of them, 18 are red and 22 are green. If one marble is randomly selected out of this hat, what is the probability that this marble is

a. red b. green?

Answer 1

1. Calculate total amount of marbles.
(Given as 40).
2. Divide amount of marbles of desired colour over total amount of marbles.

Red: 18/40 = 0.45 or 45%
Green: 22/40= 0.55 or 55%.