Jose pulls a colored marble out of a bowl, closing the marble at random. There are 145 marbles in the bowl, of which 90 are black, 33 are white, and the rest are blue. Use words and numbers to describe the probability that he will pull a blue marble out of the bowl.

Question

Jose pulls a colored marble out of a bowl, closing the marble at random. There are 145 marbles in the bowl, of which 90 are black, 33 are white, and the rest are blue. Use words and numbers to describe the probability that he will pull a blue marble out of the bowl.

A. 38%
B. 15.2%
C. 77.2%
D. 20%

Answer 1

D. 20%

Explanation: The probability of pulling a blue marble can be calculated by taking the number of blue marbles divided by the total number of marbles:

(Number of blue marbles) / (Total number of marbles) = 22 / 145 ≈ 0.1517

Converting this to a percentage gives 15.17%, which is closest to 20% out of the given answer choices.