Question

if 80 men can do a piece of work in 10 days, in how many men are required to do the same of work in 4 days​

Answer 1

Answer:

200

Step-by-step explanation:

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Answer 2

Answer:

80 man can do a piece of work in 10 days.

Then 40 men will take double time to do the work = 10*2 = 20 days.

If the efficiency is reduced in half then the time taken will be double.