Question

A bag contains eight white marbles, six red marbles and four blue marbles.

How many blue marbles must be added to the bag so that the probability
of choosing a blue marble is 1/2?
a. 6
b. 5
c. 10
d. 0

Answer 1

c) 10

Explanation:

you need to add the white and red marbles which would be 14.

then you subtract 14 by the amount of blue marbles.