General Aptitude - Numberical Ability - Time and Work

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Question - 1

A can type a report in 16 h and B can do the same job in 12 h. With the help of C they complete the report in 6 h. Then, C alone can type the report in how many hours?

  • A 48 h
  • B 42 h
  • C 45 h
  • D 49 h

Question - 2

Working together P and Q can do a job is 6 days, Q and R can do the same job in 10 days while while P and R can do it in 5 days. How long will it take if all of them work together to complete the job?

  • A \(4\frac { 2 }{ 7 } \)
  • B \(4\frac { 3 }{ 7 } \)
  • C \(4\frac { 4 }{ 7 } \)
  • D \(4\frac { 5 }{ 7 } \)

Question - 3

Sudha can do a work in 10 days and Rani can do the same work in 40 days respectively. If they work at it on alternate days Sudha beginning the work, then in how many days the work, then in how many days the work will be completed?

  • A 16 days
  • B 8 days
  • C 12 days
  • D 14 days

Question - 4

A is twice as good a workmen as B and together they finish a piece of work in 24 days. In how many days will B alone finish the work?

  • A 63 days
  • B 75 days
  • C 60 days
  • D 72 days

Question - 5

A can do a piece of work in 2 days and B in 16 days. After working for 4 days with A, B leaves the work. In how many more days will A finish the remaining work?

  • A 5 days
  • B 12 days
  • C 8 days
  • D 9 days

Question - 6

Anita can do a work in 30 days. Sunita is 25% more efficient, then Anita. The number of days taken by Sunita to do the same work is

  • A 24 days
  • B 30 days
  • C 27 days
  • D 33 days

Question - 7

Two friends A and B workng together completed a work in 26 days. Thei skills of doing the work are in the ratio 8:5. How many days will B take, if engaged alone?

  • A 10 days
  • B 16 days
  • C 12 days
  • D 18 days

Question - 8

A  can do a piece of work in 120 days and B can do it in 150 days. They work together for 20 days. Then, B leaves and A continues the work in completed in 48 more days. In how days  can C do it, if he works alone?

  • A 240 days
  • B 225 days
  • C 250 days
  • D 260 days

Question - 9

X can do a work in 4 days  whle Y can do the same work in 9 days. Both of them finish the worj together and get Rs. 2600. Find the sahres of X and Y respectively.

  • A Rs 1800, Rs 800
  • B Rs 2000, Rs 600
  • C Rs 1500, Rs 1100
  • D Rs 1900, Rs 700

Question - 10

A and B workng together can finish a job in T days. If A works alone and completes the job he will take (T+5) days. If B works alone and completes the same job, he will take (T+45) days. Find T.

  • A 15 days
  • B 20 days
  • C 16 days
  • D 18 days
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