The length of wall painted by one man in one day = 60 / 4 Ã— 3 = 5 m
No. of days required to paint 50 m wall by 5 men = 50/ 5 Ã— 5 = 2 day.
If 4 men can paint 60 m long wall in 3 days, then 5 men can paint 50 m long wall in

[1] 3days
[2] 2days
[3] 5days
[4] 6days
[5] 1day