Answer:
60 quarters
Step-by-step explanation:
Given:
- Eric has 240 coins in his collection.
- 11/20 of the coins are pennies.
- 4/20of the coins are nickels.
- The rest of the coins are quarters.
How many quarters are there?
First, we calculate the number of pennies
(11/20) · 240 = 132 pennies
Second, we calculate the number of nickels
(4/20) · 240 = 48 nickles
Now, we calculate the number of quarters by taking
240 - 132 - 48 = 60 quarters
So, there are 60 quarters.