Question

To be in a contest, a rocket must weigh 4 pounds or less. Without any paint, a rocket weighs 62 ounces. If someone wants to paint their rocket, what is the weight of the most paint they can use?

Answer 1

The rocket without paint is 62 ounces. And so we can only use `64-62=2` ounces of paint (keep in mind this is the weight measure of ounces and not the liquid measure of ounces!)

Explanation:

To solve this, we need to know the number of ounces in a pound. There are 16 ounces to the pound (or so says the google conversion tool).

So a rocket can be, at most, 4 pounds, which is `4xx16=64` ounces.

The rocket without paint is 62 ounces. And so we can only use `64-62=2` ounces of paint (keep in mind this is the weight measure of ounces and not the liquid measure of ounces!)