51.
|
A, B and C can complete a piece of work in
24, 6 and 12 days respectively. Working together, they will complete the same
work in:
|
|
|
52.A and B together can do a piece of work in
30 days.A having worked for 16 days, B finishes the remaining work in 44 days.
In how many days shall B finish the whole work alone?
A. 30
days B.
40 days
C. 60
days D.
70 days
53.
|
Sakshi can do a piece of work in 20 days.
Tanya is 25% more efficient than Sakshi. The number of days taken by Tanya to
do the same piece of work is:
|
|
|
54.A, B and C are employed to do a piece of
work for Rs.529. A and B together are supposed to do 19/23 of the work and Band
C together 8/23 of the work. What amount should A be paid?
A.
Rs.315 B. Rs.345
C.
Rs.355 D. Rs.375
55.
|
A takes twice as much time as B or thrice
as much time as C to finish a piece of work. Working together, they can
finish the work in 2 days. B can do the work alone in:
|
|
|
4 days
|
|
6 days
|
|
|
8 days
|
|
12 days
|
|
56.A and B can together finish a work 30
days. They worked together for 20 days and then B left. After another 20 days,
A finished the remaining work. In how many days A alone can finish the work?
A. 40
B. 50
C. 54
D. 60
57.
|
A and B can complete a work in 15 days and
10 days respectively. They started doing the work together but after 2 days B
had to leave and A alone completed the remaining work. The whole work was completed
in :
|
|
|
8 days
|
|
10 days
|
|
|
12 days
|
|
15 days
|
|
58.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?
A. 8 hours
B. 10 hours
C. 12 hours
D. 24 hours
59.
|
A and B can do a piece of work in 30 days,
while B and C can do the same work in 24 days and C and A in 20 days. They
all work together for 10 days when B and C leave. How many days more will A
take to finish the work?
|
|
|
18 days
|
|
24 days
|
|
|
30 days
|
|
36 days
|
|
60.A can lay railway track between two given
stations in 16 days and B can do the same job in 12 days. With help of C, they
did the job in 4 days only. Then, C alone can do the job in:
A. 9 ⅕ days
B. 9 ⅖ days
C. 9 ⅗ days
D. 10 days
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