The ratio of the ages of three people is 4:6:7. Six years ago, the sum of their ages was 50. Find their present ages.	Choose the correct answer: A) 12,18,21 B) 16,24,28 C) 20,30,35 D) 24,36,42 E) 28,42,49
Let the present ages be 4x, 6x, 7x.   (4x-6) + (6x-6) + (7x-6) = 50   17x = 68   x = 4   Their present ages are 16, 24, and 28.   The answer is 16,24,28.
<result>B</result>
The ratio of the ages of three people is 4:6:7. Six years ago, the sum of their ages was 50. Find their present ages.