Question

A bag contains 5 yellow marbles, 7 pink marbles, and 3 purple marbles. Gordon selects a marble without looking. What is the probability that he selects a yellow marble or a purple marble?

Answer 1

the awnser is 8/15 because of 5+3=8

Explanation:

5+7+3=15

8/15

Answer 2

5 + 7 + 3 = 15, so there are 15 marbles in the bag
There's a 5/15 chance of a yellow marble
There's a 3/15 chance of a purple marbe
Add them up
8/15 chance of a yellow or purple marble