Question

Carmine has a total of 9 7/8 gallons of milk in his refrigerator. For breakfast, his nephew Silvio puts 3/4 of the milk into his cereal bowl. How many gallons of milk does Silvio get in his cereal

Answer 1

The volume of gallons used by Silvio =
`7(13)/(32)` gallons

Explanation:

Total volume of milk =
`9(7)/(8)` =
`(79)/(8)`

amount used by Silvio =
`(3)/(4)` of total volume

This means that if the total volume of milk were divided into four parts, Silvio takes 3 out of 4 parts, and this is converted to volume as follows:

∴ amount used by Silvio =
`(3)/(4)` ×
`(79)/(8)` =
`(237)/(32)` =
`7(13)/(32)` gallons