Pat M has 220 quarters. 40% of the coins are not pennies. Of the remaining coins, 25% are quarters. How many quarters are there?,

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Answer 1 · 2016-11-08T15:13:08

There are 33 quarters.

Let #x# represent the number of coins that are NOT pennies.

Then:

#x = 220 - 40%# of #220# or

#x = 220 - 40/100 220#

#x = 220 - 88#

#x = 132#

The #q# or the number of quarters is 25% of 132:

#q = 25%# of #132# or

#q = 25/100 132#

#q = 33#