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:
Correct answer C. 25 days
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Time and Work MCQs
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- Counting 32
- Logarithm 30
- Problems on H.C.F and L.C.M 30
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- Men and Food 24
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?
Correct answer C. 12 hours
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:
Correct answer A. 4 days
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A alone can do a piece of work in 6 days and B alone in 8 days. A and B undertook to do it for Rs. 3200. With the help of C, they completed the work in 3 days. How much is to be paid to C?
Correct answer B. Rs. 400
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:
Correct answer B. 22 days
A, B and C can do a piece of work in 20, 30 and 60 days respectively. In how many days can A do the work if he is assisted by B and C on every third day?
Correct answer B. 15 days
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:
Correct answer D. 8/15
Nosheen painted 1/3 of her room with 5/2 cans of paint. How many more cans of paint will she need to finish painting her room?
Correct answer C. 5
Jawads weekly salary is $70 less then Pashas which is $50 more than Marias. If Maria earns $280 per week how much does Jawad earn per week?
Correct answer B. $260
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If 4 times x is equal to x increased by 2 then x=
Correct answer B. 2?3
30 men can do a certain work in 15 days. They started working on the project but 5 of them leave after every five days. In how many days will the work be completed now?
Correct answer A. 20 days
M and N working separately can complete a job in 6 and 12 hours respectively. If they work for an hour alternately M starting at 10:00 AM when will the job be done?
Correct answer D. 6:00 PM
20 men or 30 boys can do a certain job in 20 days. How long will it take 6 men and 15 boys to do the same job?
Correct answer A. 25 days
20 men can do a certain work in 60 days but after every five days five additional men join them. In how many days will work be done now?
Correct answer D. 34.5 days
Two pipes A and B can fill a tank in 14 and 21 hrs respectively. If both pipes are opened together then after how many hours A should be closed so that tank is full in 7 hours.
Correct answer A. 28/5 hrs
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A tank can be filled by tap A in 16 hrs and by tap B in 20 hrs. Both the taps are kept opened for 8 hrs and then A is closed. In how many more hours will the tank be completely filled?
Correct answer A. 2 hrs
A tank has a leak which would empty it in 10 hrs. A tap is turned on and it admits 9 liters per minute into the tank and tank is now emptied in 25 hrs. How many liters tank holds?
Correct answer A. 9000
Three pipes A B and C can fill a tank in 20 hours. After working at it together for 5 hours C is closed and A and B fill it in 30 hrs. C alone can fill it in
Correct answer B. 40 hrs
A and B can complete a task in 44 days when working together. After having worked together for 33 days B is called away. A completes the remaining task in the next 25 days. A can complete the job working alone in
Correct answer C. 100 days
A can do a piece of work in 10 days and B in 15 days. If they work for a day alternately A beginning the work will be completed in
Correct answer B. 12 days