The present ages of three persons are in the proportion of 4 : 7 : 9. Eight years ago, the sum of their ages was 76. Find their present ages.	Choose the correct choice from the following answers:
A) 20,35,45
B) 8,20,28
C) 16,28,36
D) 16,28,46
E) None of these
Let the present ages of three persons be 4K,7K and 9K respectively.   (4K - 8) + (7K - 8) + (9K - 8) = 76   20K = 100   K = 5   Therefore, then present ages are 20,35,45.   20,35,45NSWER:20,35,45
<result>A</result>
The present ages of three persons are in the proportion of 4 : 7 : 9. Eight years ago, the sum of their ages was 76. Find their present ages.