- 6 months
- 8 months
- 10 months
- 12 months
- 8.5 months
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Answer: C official key
Approach: Profit share ∝ capital × time.
Solution:
Capital: A = 1/4, B = 3/4 of total.
Profit: B gets 2/3 → A gets 1/3 → A : B = 1 : 2.
(1/4 × 15) : (3/4 × t) = 1 : 2
3t/4 = 2 × 15/4 = 30/4 → t = 10 months.
Cetking shortcut: Capital ratio 1 : 3, profit ratio 1 : 2 → time ratio = (1/1) : (2/3) = 15 : 10 → B = 10 months.
Answer: C









