20- men, decided to complete the repairing work, of a house in 30 days. But after 6 days 8 men feel sick. Let's find, how long they will take to complete the work.

Working 5 hours a day, a work can be completed in 30 days. Let's find, how long it would take to complete the work, working 6 hours a day.

Mary and David can do a work individually in 10 days and 15 days respectively. At first Mary alone worked for 4 days, then David alone worked for 5 days and left. Maria came and completed the remaining work in 4 days. If Mary, David and Maria would work together. let’s calculate in how many days they would complete the work.

Vinay and Praveen working together can paint the exterior of a house in 6 days. Vinay by himself can complete the job in 5 days less than Praveen. How long will it take Vinay to complete the job.

A jeep covers a distance of 32 km. in 8 hours keeping the same speed, let's find how long the jeep will take to cover a distance of 120 km.

We 8 friends decided to contribute Rs 5 each for preparing jhalmuri. But 3 friends left for their homes for some urgent work. Let's find, how much money was collected through contribution.

Priya and Debu individually completes a work in 10 hours and 12 hours respectively. If they do the work together, let’s calculate in how many hours they will complete the work.

A goods train 250m. long is running at a speed of 33km/hr. Another mail train 200m long and running at a speed of 60 km/hr. It is running in same direction on a different track and after meeting the goods train over passes it. Let us find how long will the mail train take to overpasses the goods train.

22 men are required to paint a house in 10 days. In how many days will 11 men paint the same house. Find?

A and B can complete (2)/(3) rd of a piece of work , if A work 3 days and B work 4 days together. While they can complete (11)/(12) part of the work.if A work 3 days and B works 6 days together. In how many days A and B will complete the work seperately.

Ourselves 1. Debubabu built a new house. He will paint the windows of his house. Each window has two paoes. If he takes 2 hr 15 min to paint 1 window pane, let's find how long will be take to colour 2 windows.