Question

perry mixed 4 2/3 ounces of red paint and 3 1/3 ounces of yellow paint to make the right shade of orange paint. He needs 40 ounces of orange paint to paint the rest of the desk. How many ounces of red and yellow paint should Perry use to make enough orange paint to cover the top of the desk?

Answer 1

4 2/3 + 3 1/3 = 8 oz

Now, 40 = 8*5, so he needs 5 times as much of the paints.