Question

There are 4 cups in 1 quart. To wash windows, 2 cups of Rid-a-Spot are to be mixed with 5 cups of water. How many quarts of this mixture can be made from the 1-quart container of Rid-a-Spot? Express your answer as a decimal to the nearest tenth.

Answer 1

3.5 quarts of this mixture can be made from the 1-quart container of Rid-a-Spot.

Explanation:

2 cups of Rid-a-Spot are to be mixed with 5 cups of water.

Then cups of water require for 1 cup of Rid-a-Spot =
`(5)/(2) cup=2.5 cup`

Given : 4 cups = 1 quart

`1 cup=(1)/(4) quart=0.25 quart`

`2.5 cup=(2.5)/(4) quart=0.625 quart`

So, 0.25 quart of Rid-a-Spot requires 0.625 quarts of water.

Then 1 quart of Rid-a-Spot requires :

`(0.625 quarts)/(0.25)=2.5 quart` of water

Total volume of the mixture = 1 quart + 2.5 quart=3.5 quart

3.5 quarts of this mixture can be made from the 1-quart container of Rid-a-Spot.