To clean laundry,1/3 cup of bleach is needed for every 2 gallons of water. How many cups of bleach are needed for 20 gallons of water?

1 Answer
Jun 11, 2018

3 1/3 cups

Explanation:

A third of a cup bleach is used for every 2 gallons of water. So the first thing to figure out is how many groups of 2 gallons there are in the tank.

Since there are 20 gallons, there would be:

20/2 = 10 groups of 2 cups

So 10 groups of 1/3 a cup will be needed. So multiply:

10 xx 1/3

10/1 xx 1/3

10/3 rArr 3 1/3

So 3 1/3 cups are needed.