25 men reap a field in 20 days. When should 15 men leave the work, if the whole field is to be reaped in 371/2 day after they leave the work ?

25 men reap a field in 20 days. When should 15 men leave the work, if

1.	25 men reap a field in 20 days. When should 15 men leave the work, if the whole field is to be reaped in 371/2 day after they leave the work ?
A.	6 days
B.	4 days
C.	5 days
D.	None of these
Answer» D. None of these

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