Time & Work · Question 9 · Medium
A and B together can finish a job in 8 days, B and C in 12 days, and A and C in 16 days. In how many days can A, B and C together finish it?
- 36/5 days
- 12 days
- 48/7 days
- 96/13 days
Answer and explanation
Answer: D. 96/13 days
Explanation: Adding the pairs: 2(A + B + C) = 1/8 + 1/12 + 1/16 = 13/48, so A + B + C = 13/96 per day, giving 96/13 days (about 7.4 days).
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