A runner completes a 10 km race in 50 minutes. What is the runner's speed in km/h?

B. 12 KM/H

If a vehicle travels at a speed of 75 km/h for 4 hours, what distance will it cover?

B. 300 KM

A and B can complete a work in 18 days and 24 days respectively. If they work together for 6 days, how much of the work is left?

C. 1/2
Posted in:  Time & Work -  Aptitude -  Mathematics

If a person walks at a speed of 4 km/h, how long will it take to walk 20 km?

B. 5 HOURS