Question

A certain drug is made from only two ingredients: compound A and compound B. There are 5 milliliters of compound A used for every 6 milliliters of compound B. If a chemist uses 330 milliliters of compound A, how many milliliters of the drug will be made?

Answer 1

we can say There are 5 milliliters of compound A used for every 11 milliliters of drug
5/11=330/x
x=330*5/11=726