Question

A bag contains 30 marbles, 3 of which are blue, 20 are red, 5 are green, and 2 are purple. Emerson takes a marble out of the bag, records the color, and returns it to the bag. How many purple marbles should he expect after 300 trials?

20
30
50
200

Answer 1

Answer:

20 purple marbles

Explanation:

2/30 = x/300

300/30 = 10

2*10 = 20

x = 20