Question

Ayana has 220 coins in her piggy bank. Of those 40% are pennies. Out of the coins that are not pennies, 25% are quarters. How many of the coins are quarters?"

Answer 1

First, found out how many coins are pennies and subtract that from the first 220. Note 40% is .40 times the amount
220 * .40 = 88 pennies
220 - 88 = 132 other coins
Of these remaining 132 coins 25% are quarters, so calculate this to find the answer:
132 * .25 = 33 quarters!

Answer 2

33 quarters

Explanation:

Given,

Total number of coins = 220,

Of those 40% are pennies,

So, the coin that are pennies = 40% of 220

`=(40* 220)/(100)`

`=(8800)/(100)`

= 88

Thus, the number of coins which are not pennies = 220 - 88 = 132,

Now, Out of the coins that are not pennies, 25% are quarters,

Hence, the number of quarters = 25% of 132

`=(25* 132)/(100)`

`=(132)/(4)`

= 33.