The current ages of 3 individuals are in the ratio 4:7:9. 0.8 decades ago, the sum of their ages was 56. Find their current ages in years Choose one:
A) 16, 28, 36
B) 17, 28, 39
C) 18, 30, 38
D) 20, 32, 46
E) None of these
A   16, 28, 36   Let their current ages are 4A, 7A and 9A years correspondingly.   Then, (416, 28, 36 – 8) + (716, 28, 36 – 8) + (916, 28, 36 – 8) = 56   2016, 28, 36 = 80   16, 28, 36 = 4   Their current ages are   16 years, 28 years and 36 years correspondingly.
<result>A</result>
The current ages of 3 individuals are in the ratio 4:7:9. 0.8 decades ago, the sum of their ages was 56. Find their current ages in years