Question

If 5 men working for 6 hours a day can reap a field in 20 days,then in how many days will 15 men reap the field ?The hours of the day may be taken as 8 hours.

Answer 1

For these kind of problems, you have to follow the below formula:

(M x D x H)/W; where M = no.of men, D = no of days, H = no of hours, W = work

Now according to question,

(5 x 6 x 20)/1 = (15 x no of days x 8)/1

or, 600 = 120 x no of days

or, no of days = 600/120 = 5(Ans)