45 men can complete a work in 16 days. Six days after they started working, 30…

Solution: 1

We have been given that 45 men can complete the work in 16 days.

Hence product of men and days required to complete the task = 45 × 16

= 720

We have 45 men working for 6 days, hence number of man-hours completed = 45 × 6

= 270

Hence remaining men hours = 720 – 270

= 450

Now, we got 30 more men

Hence number of men working now = 45 + 30

= 75

Now, number of days required = 450/75

= 6

Hence total number of days required = 6 + 6

= 12