MCQ Subject: Time Work & Distance

A car travels from City A to City B at 60 km/h and returns at 40 km/h. What is the average speed for the entire trip?

If A can complete a job in 12 days and B can complete the same job in 15 days, how long will it take them to complete the job together?

Rahul can paint a house in 6 days, and Rohan can paint the same house in 12 days. If they work together for 2 days, what fraction of the house is left unpainted?

Two trains start simultaneously from stations 400 km apart. One travels at 40 km/h and the other at 60 km/h. How many hours until they meet?

Rohan can paint a house in 6 hours and his brother can paint the same house in 8 hours. How long will it take for both of them to paint the house together?

A person walks 20 km in 5 hours and cycles 50 km in 8 hours. How long will it take to walk 30 km and cycle 40 km?

Rahul can paint a house in 6 hours, while Rohan takes 8 hours for the same job. How much of the house can Rohan paint in the time Rahul paints 3/4th of it?

If 20 workers can complete a wall in 10 days, how many days would it take for 30 workers to complete the same wall, assuming equal efficiency?

If a machine can produce 480 units in 8 hours, how many hours would it take to produce 240 units at the same rate, assuming work rate remains constant?

If 10 workers can build a house in 20 days, how many days would it take for 15 workers to build the same house, assuming each worker works at the same rate?