Question

The ratio of two numbers is 7 to 5. The sum of the numbers is 36. What are the numbers?

A. 26 and 10
B. 18 and 8
C. 21 and 15
D. 14 and 10

Answer 1

C is the correct answer please like for more

Answer 2

Explanation:

a/b=7/5

a=7b/5

a+b=36, using 7b/5 for a we have

7b/5+b=36

7b/5+5b/5=36

12b/5=36

12b=180

b=15, and since a=7b/5

a=7(15)/5

a=21

So the numbers are 21 and 15