How do I answer this word math problem

Question

A survey of students at a university shows that
3 out of 4 drink coffee. Of the students who drink? coffee, 1 out of 5
adds cream to it. If the university has 10,000
?students, find the number of students who drink coffee with cream.

 

How many students drink coffee with? cream?

Answer 1

HI, Irma.  You can set it  up with ratios, but I am going to turn the ratios into percentages and multiply.  3/4 is 75%, 1/5 is 20%  -  75% * 20% * 10000 = 1500

or, using fractions (ratios)  3/4 * 1/5 * 10000 = 30000/20 = 1500