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

B. 5 HOURS

A and B can complete a work in 15 days and 20 days respectively. If they work together for 5 days, how much work is left?

A. 1/3
Posted in:  Time & Work -  Aptitude -  Mathematics

A can do a work in 10 days, B can do it in 15 days, and C can do it in 30 days. If they work together, how long will it take to complete the work?

B. 6 DAYS
Posted in:  Time & Work -  Aptitude -  Mathematics

A car travels 150 km in 2 hours. What is its speed in km/h?

B. 75 KM/H

A person walks at a speed of 4 km/h. How far can they walk in 2.5 hours?

B. 10 KM