The present ages of three persons are in proportions 4:7:9.Thirteen years ago, the sum of their ages was 81. Find their present ages.
Pick: A) 24, 42 B) 28, 36 C) 35, 45 D) 35, 55 E) of these
Let their present ages be 4x, 7x and 9x years respectively.   Then, (4x - 13) + (7x - 13) + (9x - 13) = 81   20x = 120 =&gt; x = 6   Their present ages are 24, 42 and 54 years respectively.   24, 42NSWER:24, 42
<result>A</result>
The present ages of three persons are in proportions 4:7:9.Thirteen years ago, the sum of their ages was 81. Find their present ages.