IBPS Clerk Prelims Model Paper 8

Question : 54 of 100

Marks: +1, -0

The amount of work done by a man on n th day after starting the work is n times the amount of work that can be done on the first day. If 8 men start the work, it can be completed in 10 days. If the work has to be completed in 4 days, h ow many men have to work?