Home  / Mathematics  / Aptitude  / Time & Work
Time & Work
Time, Distance and Speed

If A can do a work in 15 days and B can do it in 25 days, how long will it take for A to finish the work alone after working with B for 5 days?

Answer: A. 10 days
In 5 days, A and B together complete 5/15 + 5/25 = 1/3 of the work. A has to complete 2/3 of the work alone, which will take him 10 days.
Posted in:  Time & Work -  Aptitude -  Mathematics