what should be the answer ??
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28 Days
Let work efficiency of one man and woman be x and y respectively .
Now
Now we need work efficiency of a woman , so we need to eliminate x .
For that multiply first equation by 3 and second by 4 and subtract
Work capacity of 13 woman
So days in work complete = 1/ work efficiency
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28 Days the 13 women will finish the job.
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