Quantitative Apitute-Time & Work
Quantitative Apitute-Time & Work
31. A cistern can be filled in 9 hours but it takes 10 hours due to a leak in its bottom. If the cistern is full, then the time that the lead will take to empty is :
- 60 hrs
- 70 hrs
- 80 hrs
- 90 hrs
32. Taps A and B can fill a bucket in 12 minutes and 15 minutes respectively if both are opened and A is closed after 3 minutes, how much further time would it take for B to fill the bucket ?
- 7 min. 45 sec
- 7 min 15 sec
- 8 min. 5 sec
- 8 min. 15sec
33. A tank can be filled by a tap in 20 minutes and by another tap in 60 minutes. Both the taps are kept open for 10 minutes and then the first tap is shut off. After this, the tank will be completely filled in ;
- 10 min.
- 12 min
- 15 min
- 20 min.
34. If two pipes function simultaneously, the reservoir willbe filled in 12 hours. One pipe fills the reservoir 10 hours faster than the other. How many hours it takes the second pipe to fill the reservoir ?
- 25 hrs
- 28 hrs
- 30 hrs
- 35 hrs
35. One tap can fill a cistern in 2 hours and another tap can empty the cistern in 3 hours. How long will they take to fill the cistern if both the taps are opened?
- 5 hrs
- 6 hrs
- 7 hrs
- 8 hrs
36. 12 buckets of water fill a tank when the capacity of each bucket is 13.5 litres. How many buckets will be needed to fill the same tank if the capacity of each bucket is 9 litres ?
- 8
- 16
- 15
- 18
37. 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 :
- 1/4
- 1/10
- 7/15
- 8/15
38. 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?
- 12 days
- 15 days
- 16 days
- 18 days
39. 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:
- 20 days
- 45/2days
- 25 days
- 30 days
40. 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?
- Rs. 375
- Rs. 400
- Rs. 600
- Rs. 800