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If 3 men or 4 women can plough a field in 43 days, how long will 7 men and 5 women take to plough it ?

A9

B10

C11

D12

Answer:

D. 12

Read Explanation:

Man : Woman =4 : 3 Total work = 12 × 43 Total work = 516 units 7 men and 5 women will do the work ⇒ 516/43=12 days ∴ Ans = 12 days.


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