Question

Based on past experience, a caterer knows the ratio of the number of glasses of juice to the number of people at the party should be 3:1. If 15 people are coming to the party, how many glasses of juice should the caterer have ready?

Answer 1

Number of glasses of juice = 3
Number of people at the party = 1
3*15=45
1*15=15

There should be 45 juices at the party, for 15 people.

Answer 2

Simply multiply 15 by 3 to find your answer. :)