The present ages of three persons in proportions 2 : 3 : 5. Eight years ago, the sum of their ages was 36. Find their present ages (in years). Choose the correct choice from the following
A) 15, 20, 28  B) 22, 28, 36  C) 25, 35, 45  D) 12,18,30  E) of these
Let their present ages be 2x, 3x and 5x years respectively.   Then, (2x - 8) + (3x - 8) + (5x - 8) = 36   10x = 60   x = 6.   Their present ages are 2x = 12 years, 3x = 18 years and 5x = 30 years respectively.   ANSWER:12,18,30
<result>D</result>
The present ages of three persons in proportions 2 : 3 : 5. Eight years ago, the sum of their ages was 36. Find their present ages (in years).