Question

A farmer can reap a field in 10 days while his
wife can do it in 8 days. If they work together, in
how much time can they reap the field?
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Answer 1

Answer:

The farmer takes 10 days to reap the harvest while his wife does the same work in 8 days.

That is to say the farmer does 1/10th of the work in a day while his wife does 1/8th of the work.

Together they do (8+10)/(10*8) = 18/80 or 9/40th of the work.

So, the two together will harvest the field in 40/9 days or 4 and 4/9th of a day, that is less than 4.5 days.

Therefore, they both take 4.4 or 4.5 days to to reap the field... I hope this helps!!!