Question

No-Freeze antifreeze mixture contains 30% alcohol. How much alcohol is there in 15 quarts of No-Freeze?

Answer 1

well, what is 30% of 15 quarts?

15*$\frac{30}{100}$=15*$\frac{3}{10}$=3*$\frac{3}{2}$=4.5 quarts - the correct answer!