Question

A bag contains 5 red marbles and 10 blue marbles. What is the probability of randomly selecting a red marble from the bag?

Answer 1

`(1)/(3)`

Explanation:

Total marbles = 5 + 10

= 15

There are 15 total marbles.

5 marbles are red.

`(5)/(15) =(1)/(3)`

Answer 2

1/3

Explanation:

5 red marbles + 10 blue marbles = 15 total marbles

5 red marbles / 15 total marbles = 5/15

5/15 = 1/3