Aptitude  Time and Work  Practice Q&A

1. 4 men and 6 women can complete a work in 8 days, while 3 men and 7 women can complete it in 10 days. In how many days will 10 women complete it?

35 40 45 50

2. A and B can complete a work in 15 days and 10 days respectively. They started doing the work together but after 2 days B had to leave and A alone completed the remaining work. The whole work was completed in :

8 days 10 days 12 days 15 days

3. A works twice as fast as B. If B can complete a work in 12 days independently, the number of days in which A and B can together finish the work in :

4 days 6 days 8 days 18 days

4. A can do a work in 15 days and B in 20 days. If they work on it together for 4 days, then the fraction of the work that is left is :

$ \dfrac{1}{4} $ $ \dfrac{1}{10} $ $ \dfrac{7}{15} $ $ \dfrac{8}{15} $

5. A and B together can do a piece of work in 30 days. A having worked for 16 days, B finishes the remaining work alone in 44 days. In how many days shall B finish the whole work alone?

30 days 40 days 60 days 70 days

6. A can finish a work in 24 days, B in 9 days and C in 12 days. B and C start the work but are forced to leave after 3 days. The remaining work was done by A in:

5 days 6 days 10 days 10$ \dfrac{1}{2} $days

7. A machine P can print one lakh books in 8 hours, machine Q can print the same number of books in 10 hours while machine R can print them in 12 hours. All the machines are started at 9 A.M. while machine P is closed at 11 A.M. and the remaining two machines complete work. Approximately at what time will the work to print one lakh books be finished ?

11:30 A.M. 12 noon 12:30 P.M. 1:00 P.M.

8. A and B can do a work in 8 days, B and C can do the same work in 12 days. A, B and C together can finish it in 6 days. A and C together will do it in :

4 days 6 days 8 days 12 days

9. A is thrice as good as workman as B and therefore is able to finish a job in 60 days less than B. Working together, they can do it in:

20 days 22$ \dfrac{1}{2} $days 25 days 30 days

10. X can do a piece of work in 40 days. He works at it for 8 days and then Y finished it in 16 days. How long will they together take to complete the work?

13$ \dfrac{1}{3} $days 15 days 20 days 26 days


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