Question

You need to fill up 5 gallon drum of liquid product. The drum currently has 1.5 gallons of inside. How much more liquid can you put inside the drum?

Answer 1

`3.5` gallons

Explanation:

currently filled with `1.5` gallons

need to fill up to `5` gallons

`:.5-1.5=3.5` gallons more liquid can be added