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Aptitude - Time and Work

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Overview

Exercise

"Love is like a war, Easy to begin Hard to end."
- (Proverb)
26. 

A and B can do a work in 8 days, B and C can do the same work in 12 days. A, B and C together can finish it in 6 days. A and C together will do it in :

A. 4 daysB. 6 days
C. 8 daysD. 12 days

27. 

A can finish a work in 24 days, B in 9 days and C in 12 days. B and C start the work but are forced to leave after 3 days. The remaining work was done by A in:

A. 5 daysB. 6 days
C. 10 daysD.
10 1 days
2

28. 

X can do a piece of work in 40 days. He works at it for 8 days and then Y finished it in 16 days. How long will they together take to complete the work?

A.

13 1 days
3

B. 15 days
C. 20 daysD. 26 days

29. 

A and B can do a job together in 7 days. A is 13/4 times as efficient as B. The same job can be done by A alone in :

A.

9 1 days
3

B. 11 days
C.

12 1 days
4

D.

16 1 days
3


30. 

A and B together can do a piece of work in 30 days. A having worked for 16 days, B finishes the remaining work alone in 44 days. In how many days shall B finish the whole work alone?

A. 30 daysB. 40 days
C. 60 daysD. 70 days




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