If C can finish a work in 24 days and D can finish the same work in 36 days, how long will it take for them to finish the work together?

A. 14.4 DAYS
Posted in:  Time & Work -  Aptitude -  Mathematics

A can do a work in 15 days, B can do it in 20 days, and C can do it in 30 days. If they all work together, how long will it take to complete the work?

B. 5 DAYS
Posted in:  Time & Work -  Aptitude -  Mathematics

If A can do a piece of work in 12 days and B can do it in 18 days, how much time will they take to complete the work together?

A. 7.2 DAYS
Posted in:  Time & Work -  Aptitude -  Mathematics

If A can do a piece of work in 20 days and B can do it in 30 days, how much time will they take to finish the work together?

B. 15 DAYS
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