21. Pipe A can fill a tank in 10 hours and pipe B can fill the same tank in 12 hours. Pipe C can empty the same full tank in 6 hours. If all the pipes are opened together, then what portion of the tank will be filled after 12 hours? (SSC MTS 2017)
a. 3/4
b. 1/5
c. 1/4
d. 4/5
22. P alone can do a work in 25 days. P is 40% less efficient than Q. In how many days can Q alone do the work? (SSC MTS 2017)
a. 18
b. 20
c. 15
d. 16
23. Rahul does complete a work in 25 hours. If Rajesh is 25% more efficient than Rahul then how much hours will Rajesh take to complete the same work? (SSC MTS 2017)
a. 20 hrs
b. 30 hrs.
c. 21 hrs.
d. 22 hrs.
24. A can do a piece of work in 4 days. B and C together can do it in 3 days, while A and C together can do it in 2 days. How many days will B take to do the work alone? (SSC MTS 2017)
a. 8 days
b. 12 days
c. 10 days
d. 16 days
25. Rakesh can do a piece of work in 20 hours. After he works at it for 8 hours, how much part of the work would be left? (SSC MTS 2017)
a. 3/5
b. 5/3
c. 2/3
d. 1/5
26. Manoj does a work in 20 days and Sahil does the same work in 30 days. In how many days they together will do the same work? (SSC MTS 2017)
a. 10 days
b. 14 days
c. 12 days
d. 16 days
27. Three taps A, B and C can fill an tank in 50, 60 and 75 hours respectively. How long (in hours) would the three taps take to fill the tank if all of them are opened together? (SSC MTS 2017)
a. 12
b. 15
c. 20
d. 10
28. A can do a piece of work in 30 days. He worked for 6 days and B finished the remaining work in 48 days. B alone can do the whole work in how many days? (SSC MTS 2017)
a. 60
b. 55
c. 75
d. 70
29. Three taps A, B and C can fill a tank in 10, 12 and 15 hours respectively. How long (in hours) would the three taps take to fill the tank if all of them are opened together? (SSC MTS 2017)
a. 4
b. 8
c. 6
d. 7
30. A and B together can do a piece of work in 5 days and A alone can do it in 30 days. B alone can do the work in how many days? (SSC MTS 2017)
a. 5
b. 6
c. 8
d. 10
31. Two pipes P and Q, when opened alone can fill the tank in 20 and 30 hours respectively. If both pipes are opened together, then in how many hours will the tank be filled? (SSC MTS 2017)
a. 12
b. 24
c. 8
d. 15
32. Three taps A, B and C can fill a tank in 10, 12 and 15 hours respectively. If all the taps are opened together, then in how many hours will the tank be filled? (SSC MTS 2017)
a. 4
b. 6
c. 8
d. 2
33. If 2/5th of a cistern is filled in 6 minute, then what is the time needed to fill the remaining part? (SSC MTS 2017)
a. 8
b. 9
c. 12
d. 10
34. A and B together can do a piece of work in 20 days and A alone can do it in 30 days. B alone can do the work in how many days? (SSC MTS 2017)
a. 45
b. 60
c. 75
d. 90
35. Three taps A, B and C can fill thetank in 40, 48 and 60 hours respectively. How long (in hours) would the three taps take to fill the tank if all of them are opened together? (SSC MTS 2017)
a. 12
b. 16
c. 10
d. 8
36. A can do a piece of work in 20 days. He worked for 5 days and B finished the remaining work in 42 days. B alone can do the whole work in how many days? (SSC MTS 2017)
a. 56
b. 52
c. 46
d. 64
37. P, Q and R undertook a work for Rs. 48000. Together P and Q complete 5/12th part of the work. What is the share (in Rs.) of R? (SSC MTS 2017)
a. 21000
b. 28000
c. 27000
d. 31000
38. A can do a piece of work in 20 days and B can do the same piece of work in 30 days. They start working together and work for 5 days and then both leave the work. C alone finishes the remaining work in 14 days. In how many days will C alone finish the whole work? (SSC MTS 2017)
a. 24
b. 18
c. 36
d. 42
39. Radha can do a piece of work in 16 days. Meera and Shashi together can do it in 12 days, while Radha and Shashi together can do it in 8 days. How many days will Meera take to do the work alone. (SSC MTS 2017)
a. 40 days
b. 28 days
c. 32 days
d. 48 days
40. A can do a piece of work in 40 days. B does the same work with 60% more efficiency. How many days will B take to complete the work alone? (SSC MTS 2017)
a. 30 days
b. 18 days
c. 15 days
d. 25 days
