Hitesh is 40 years old and Ronnie is 60 years old. How many years ago was the ratio of their ages 3 : 5? Choose the correct choice from the following answers
A) 5 years
B) 10 years
C) 20 years
D) 37 years
E) None
Solution   Suppose, the ratio was 3 : 5, x years ago.   Then,	40 - x / 60 - x   = 3 / 5.   ‹=›5(40-x)=3(60-x)   ‹=›2x= 20   ‹=›x= 10   Answer 10 years
<result>B</result>
Hitesh is 40 years old and Ronnie is 60 years old. How many years ago was the ratio of their ages 3 : 5?