55-The present ages of three persons are in proportions 4:7:9. Eight years ago, the sum of their ages was 56. Their present ages are
A. 8, 20, 28
B. 16, 28, 36
C. 20, 35, 45
D. None of these
Answer:B
55-The present ages of three persons are in proportions 4:7:9. Eight years ago, the sum of their ages was 56. Their present ages are
A. 8, 20, 28 B. 16, 28, 36 C. 20, 35, 45 D. None of these