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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

A and B can complete a work in 20 days and 30 days respectively. If they work together for 10 days, how much of the work is left?

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

A can complete a work in 10 days and B can complete the same work in 15 days. How many days will they take to complete the work together?

B. 8 DAYS
Posted in:  Time & Work -  Aptitude -  Mathematics

If 5 men can complete a work in 20 days, how many days will 10 men take to complete the same work?

A. 10 DAYS
Posted in:  Time & Work -  Aptitude -  Mathematics

A and B can do a piece of work in 12 days and 15 days respectively. How long will they take to complete the work if A works alone for 4 days and then B joins him?

B. 10 DAYS
Posted in:  Time & Work -  Aptitude -  Mathematics