Question

A wallet containing 5 five-dollar bills, 7 ten-dollar bills, and 8 twenty-dollar bills is found and returned to its owner. The wallet's owner will reward the finder with 1 bill drawn randomly from the wallet. What is the probability that the bill drawn will be a twenty-dollar bill?

Answer 1

8/21 chance or 38.1%

Explanation:

5 + 7 + 8 = 21

If the owner will take oneout of random theres an 8/21 chance he will pick out a 20 dollar bill.