Question

45 men can do a certain work in 4 months. How many months will 75 men take to do the same work.

​

Answer 1

Step-by-step explanation:

45 Men can complete certain job in 16 Days and therefore the total work is 16*45 = 720 Man-Days.

When initially 45 Men worked for 6 days the work done is 45*6 = 270 Man-Days.

The unfinished work is 720 - 270 = 450 Man-Days.

At this point since 30 additional men have joined, the total strength is 45+30 = 75.

With 75 Men the 450 Man-days of work would get done in 450 / 75 = 6 Days.

Thus we see that 6 more Days would be required to finish the job.

Hope its help..