Question

There are

9 quarters
5 dimes
7 pennies
4 nickels

A coin is drawn from a coin purse and spent. a second coin is drawn from the coin purse and spent. what is the probability that the first coin drawn was a dime and the second coin drawn was a nickel?

A. 1/30
B. 1/11
C. 9/25
D. 4/5

Answer 1

A) 1/30

Explanation:

total of 25 coins at beginning

total of 24 coins after the first coin is drawn and spent

P('d' then 'n'): 5/25 · 4/24 = 1/5 · 1/6 = 1/30