Question

The probability of getting a white marble is 1/5. if there are 37 white marbles in the bag, what is the total number of marbles in the bag

Answer 1

185 marbles

Explanation:

Probability of 1/5 of white marbles means 1/5th of the total number of marbles is white.

Hence, the total marbles is 5 times 37 of white marbles.

We simply multiply 37 and 5 to get:

37 * 5 = 185 marbles

Checking:

If there is 185 marbles in total and 37 is white, the probability of white is

37/185 = 1/5

So correct.