Time and Work Questions and Answers

General Aptitude

Time and Work

    6) If 6 men and 8 boys can do a piece of work in 10 days while 26 men and 48 boys can do the same in 2 days, the time taken by 15 men and 20 boys in doing the same type of work will be:

  • A)4 days
  • B)5 days
  • C)6 days
  • D)7 days
Answer: A

    7) 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?

  • A)8 hours
  • B)10 hours
  • C)12 hours
  • D)24 hours
Answer: C

    8) 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:

  • A)15 days
  • B)20 days
  • C)25 days
  • D)30 days
Answer: C

    9) 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?

  • A)23 days
  • B)37 days
  • C)37(1/2)
  • D)40 days
Answer: C

    10) 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 ?

  • A)11:30 A.M.
  • B)12 noon
  • C)12:30 P.M.
  • D)1:00 P.M.
Answer: D