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Quantitative Aptitude

General Questions

11.  Rohan and Sunil separately can complete a work in 8 hours and 4 hours respectively. How much time will they take when working together ?
A. 22/3 hours
B. 11/3 hours
C. 3 hours
D. 2 hours
12.  A is twice as good a workman as B and together they finish a piece of work in 14 days. In how many days can a alone finish the work?
A. 18
B. 20
C. 21
D. 24
13.  X can do a work in 16 days. In how many days will the work be completed by Y, if the efficiency of Y is 60% more than that of X ?
A. 10 days
B. 12 days
C. 25 days
D. 30 days
14.  A alone can do a certain job in 15 days, while B alone can do it in 10 days. A started the work and was joined by B after 5 days. The work lasted for how many days ?
A. 4
B. 8
C. 5
D. 9
15.  A does 20 % less work then B. If A can complete a piece of work in 7h, then B can do it in:
A. 4 h
B. 6 h
C. 8 h
D. 10 h
16.  X can completed a job in 12 days. If X and Y work together, they can complete the job in 6 days, Y alone can complete the job in:
A. 10 days
B. 12 days
C. 15 days
D. 18 days
17.  3 men can do a piece of work in 6 days. 5 women can do the same work in 18 days. If 4 men and 10 women work together, then how long will it take to finish the work ?
A. 3 days
B. 5 days
C. 2 days
D. 4 days
E. None of the above
18.  P can do piece of work in 12 days, while Q alone can finish it in 8 days. With the help of R, they can finish the work in 4 days. How long will R take to finish the work alone ?
A. 25 days
B. 34 days
C. 14 days
D. 24 days
E. None of the above
19.  3 men can do a piece of work in 18 days. 6 children can also do that work in 18 days. 4 men and 4 children together will finish the work in how many days ?
A. 10
B. 6
C. 12
D. 19
E. None of the above
20.  10 men can make a wall in 8 days. How many men required to complete the same work in half days ?
A. 80
B. 100
C. 120
D. 160

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