Question

39 machines can complete constructing a road in 12 days. How many
days will it take if 52 machines do the job?​

Answer 1

Step-by-step explanation:

So total 39*60=2340 hours are required to complete. Now equate this with other side.

30 men working 6 hours a day, so we have 180 manhours available each day. We had 2340 manhours of work and 180 manhours/day available. We can divide and get answer.

Now for any sort of competitive exam, we should always try to equate 2 sides and practice solving such kind of question in our mind.

39men*12days*5hours = 30men*x days*6hours

x days = 39*12*5/(30*6)

Answer 2

39 machines can complete constructing a road in 12 days. How many

days will it take if 52 machines do the job?