Question

Mr. Staufer bought a 10-pound bag of sugar to make cookies. There are 3 cups of sugar to apound. He needs 1 1/3 cup of sugar per batch of cookies. How many batches of cookies can Mr.Staufer make?

Answer 1

We have a total of:

$10\cdot3=30$

30 cups of sugar in the 10 pound bag. If we need 1 1/3 cups per batch we can make a total of:

$\frac{30}{1\frac{1}{3}}=\frac{30}{\frac{4}{3}}=\frac{\frac{30}{1}}{\frac{4}{3}}=\frac{90}{4}=22.5$

22.5 batches of coockies.