If a train travels at a speed of 90 km/h, how long will it take to cover a distance of 270 kilometers?

B. 3 HOURS

If A can finish a piece of work in 20 days and B can finish it in 30 days, how long will it take for both A and B to finish the work together?

B. 15 DAYS
Posted in:  Time & Work -  Aptitude -  Mathematics

C can do a work in 12 days, and D can do the same work in 18 days. If they work together for 6 days, how much of the work is left?

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

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 complete a work in 10 days, while B can complete the same work in 15 days. How long will they take to complete the work together?

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