Question

) If 2 persons can do a work in 2 days, then 4 persons can do the same work in _____days.
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Answer 1

Answer:

I think it should be 1 day

Step-by-step explanation:

If 2 persons can do in 2 days then it has to be 1 day

Answer 2

Answer:

5 people do work in 4 days. So 5 people x 4 days= 20 people days to do the job.

To do the job in 2 days, you need an unknown number of people, I’ll refer to as P.

P x 2 days = 20 people days

P = 10 people

Using 10 people you can do the job in 10 days.

There also is a direct correlation between the number of people doing the job and the length of time that the job will take. Here 5 people are needed to do the job in 4 days. To do the job in 2 days, which is half the time, you need twice the workforce of 5 people, which is 10 people. To do the job in 1 days, which is 1/4 of the time, you would need 4 times the workforce or 20 people.

Hope this helps you ☺