Question

20 men can finish a piece of work in 35 days. How many days will be taken by 28 men to finish it.​

Answer 1

Answer:

25 days

Step-by-step explanation:

20 men- 35 days

1 man-35*20 days

28 men- 35*20/28

Answer-25 days

Answer 2

The more will be the men, the lesser time it will take to complete the work.
Which means, more men, less time and less men, more time.
So there is inverse relationship between men and time taken by them.
Let the time taken by 28 men be x days
20 men take 35 days
28 men take x days (assumption)
By the problem, 20/28=x/35(inverse relation)
Therefore,x=(20*35)/28
Hence we get,x=25
So the time taken by 28 men to finish the work is 25 days.