The total of the ages of Jai, Prajan and Sarath is 93 years. Ten years ago, the ratio of their ages was 2 : 3 : 4. What is the present age of Sarath?	Select:
A) 24 years
B) 32 years
C) 38 years
D) 42 years
E) None
Sol.   Let the ages of Jai, Prajan and Sarath 10 years ago be 2x, 3x and 4x years respectively.   Then, (2x + 10) + (3x + 10) + (4x + 10) = 93   ⇔ 9x = 63   ⇔ x = 7.   ∴ Sarath's present age = (4x +10) = 38 years.   Answer 38 years
<result>C</result>
The total of the ages of Jai, Prajan and Sarath is 93 years. Ten years ago, the ratio of their ages was 2 : 3 : 4. What is the present age of Sarath?