If 1 man or 2 women can finish a job in 20 days, how may days will 3 men and 2…
If 1 man or 2 women can finish a job in 20 days, how may days will 3 men and 2 women take to finish the same job?
Answer: D. 5 — One man completes 1/20 of the job per day. Since 2 women equal 1 man, one woman completes 1/40 per day. Rate of 3 men and 2 women = 3/20 + 2/40 = 1/5, so they…
- A.
3
- B.
6
- C.
4
- D.
5
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Correct answer: D
One man completes 1/20 of the job per day. Since 2 women equal 1 man, one woman completes 1/40 per day. Rate of 3 men and 2 women = 3/20 + 2/40 = 1/5, so they finish the job in 5 days.
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