Time & Work Test 2

1. A takes twice as much time as B or thrice as much time C to finish a piece of work Working together, they can finish the work in 2 days. B can do the work alone in:

2. X can do 1/4 of the work in 10 days, Y can do 40% of the work in 40 days and Z can do 1/3 of the work in 13 days. Who will complete the work first?

3. P, Q and R are three typists who working simultaneously can type 216 pages in 4 hours. In one hour, R can type as many pages more than Q as Q can type more than P. During a period of five hours, R can type as many pages as P can during seven hours. How many pages does each of them type per hour?

4. Elan and Ronald working on an assignment. Ronald takes 6 hours to type 32 pages on a computer, while Elan takes 5 hours to type 40 pages. How much time will they take, working together on two different computers to type an assignment of 110 pages?

5. Two workers A and B are engaged to do a work. A working alone takes 8 hours more to complete the job than if both worked together. If B worked alone, he would need 4 1/2hours more to complete the job than they both working together. What time would they take to do the work together?

6. P can complete a work in 12 days working 8 hours a day. Q can complete the same work in 8 days working 10 hours a day. If both P and Q work together, working 8 hours a day, in how many days can they complete the work?

7. A and B can do work in 12 day, B and C in 15 days, C and A in 20 days. If A and B work for 5 days and remaining work is done by B and C. In how many days the work will complete.

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:

9. A and B can do a piece of work in 72 days, B and C can do it in 120 days; A and C can do it in 90 days. In what time can A alone do it?

10. A and B can do a piece of work in 5 days; B and C can do it in 7 days; A and C can do it in 4 days. Who among these will take the least time if put to do it alone?

11. A can do a certain work in the same time in which B and C together can do it. If A and B together could do it in 10 days and C alone in 50 days, then B alone could do it in;

12. 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 is;

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

14. A and B can do a job together in 7 days. A is 2 1/3 times as efficient as B. The same job can be done by A alone in;

15. A does half as much work as B in three-fourth of the time. If together they take 18 days to complete the work, how much time shall B take to do it?

16. Ashish is more 50% efficient than Manoj. Chetan does half of the work done by Ashish and Manoj together. If Chetan alone does the work in 40 days, then Ashish, Manoj and Chetan together can do the work?

17. Two workers A and B working together completed a job in 5 days. If A worked twice as efficiently as he actually did and B worked 1/3 as efficiently as he actually did, the work would have been completed in 3 days. A alone could complete the work in?

18. 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?

19. A can finish a work in 18 days and B can do the same work in 15 days. B worked for 10 days and left the job. In how many days A alone can finish the remaining work?

20. 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;