The ratio of investments of A, B and C is 5:6:7. If they share the profit in the ratio of 5:9:21, then find the ratio of their periods of investments.  Choose the correct choice:
A) 2:3:6
B) 3:5:6
C) 3:2:4
D) 2:4:3
E) 2:5:3
The ratio of investments of A, B and C is 5:6:7.   The ratio of shares of A, B and C is 5:9:21.   Therefore, Ratio of their periods of investments is   (5/5) : (9/6) : (21/7) = 1:3/2:3 = 2:3:6.   2:3:6NSWER:2:3:6
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The ratio of investments of A, B and C is 5:6:7. If they share the profit in the ratio of 5:9:21, then find the ratio of their periods of investments.