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wo pipes X and Y fill a tank in 15 hrs. and 20 hrs. respectively, while a third pipe ‘Z’ can empty the full tank in 25 hrs. All the three pipes are opened in the beginning. After 10 hrs. Z is closed. In how much time, will the tank be full ?
Hamad Basic Maths Mcqs Time and Work Mcqs 02/12/2021
A. 12 hrs
B. 14 hrs
C. 16 hrs
D. 18 hrs
Part filled in 10 hrs.
- B can work 3 times faster than A. They work together on a task and complete it in a day. How long does it take for B alone to complete the task?
- A. 32 hours B. 48 hours C. 3 days D. 4 days...
- A and B can do a piece of work in 21 and 24 days respectively.They start the work together and after some days, A leaves and B completes the rest of the task in 9 days. After how many days did A leave?
- A. 5 B. 6 C. 7 D. 8...
- A leak in the bottom of a tank can empty the full tank in 6 hrs. An inlet pipe fills water at the rate of 4 lit. a minute. When the tank is full, the inlet is opened and due to the leak, the tank is empty in 8 hrs. The capacity of the tank in liters is_________?
- A. 5,750 litres B. 5,760 litres C. 6,890 litres D. None of these...
- Mansoor-Ul-Haque and Aaqib are working on a special assignment. Mansoor-Ul-Haque needs 6 hours to type 32 pages on a computer and Aaqib needs 5 hours to type 40 pages. If both of them work together on two different computers, how much time is needed to type an assignment of 110 pages?
- A. 7 hour 15 minutes B. 7 hour 30 minutes C. 8 hour 15 minutes D. 8 hour 30 minutes...
- A is thrice as good a work man as B and takes 10 days less to do a piece of work than B takes. B can do the work in:___________?
- A. 15 days B. 14 days C. 16 days D. 30 days...
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