Time and Work
Time and Work: Time and Work Problems, Time and Work Formula, Time and Work Questions with Tricks for answering them
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Online Aptitude Questions with Answers on Time and Work
Q21. **A can do a piece of work in 4 hours; B and C together can do it in 3 hours, while A and C together can do it in 2 hours. How long will B alone take to do it?**
- 8 hours
- 10 hours
- 12 hours
- 24 hours
Solution : 12 hours
Q22. **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:**
- 15 days
- 20 days
- 25 days
- 30 days
Solution : 25 days
Q23. **A does 80% of a work in 20 days. He then calls in B and they together finish the remaining work in 3 days. How long B alone would take to do the whole work?**
- 23 days
- 37 days
- 75/2 days
- 40/3 days
Solution : 75/2 days
Q24. **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.
Solution : 1:00 P.M.
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Q25. **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?**
- 5
- 11/2
- 6
- 8
Solution : 6
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Solution :
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