12 men can complete a work in 90 days. 30 days after they started work, 2 men left and 8 men joined. How many days will it take to complete the remaining work_____?

12 men can complete a work in 90 days. 30 days after they started work, 2 men left and 8 men joined. How many days will it take to complete the remaining work_____?

Explanation

Let the no. of days = x

12×90=30×12+(12−2+8)x

1080−360=18x

720 = 18x

x = 40 days