Question

A jar contains 10 red marbles and 30 blue marbles. what is the probability of randomly selecting a red marble from the jar?

Answer 1

10/40

Explanation:

There are 10 red marbles out of a total of 40 marbles.

10 red marbles + 30 blue marbles = 40 total marbles.

If you are required to reduce fractions, then it would be 1/4

Answer 2

Answer : 1/4 Total number of marbles = 40 number of red marbles = 10 Probability of an event =Number of favorable events /Total number of events Probability of getting a red marble = 10C1/40C1 = 10/40 = 1/4 or 25%