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Question

A can finish a work in 54 mins and B can do the same work in 45 mins. B worked for 15 mins and left the job. In how many minutes, can A alone finish the remaining work?



A

30

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B

33

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C

45

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D

48

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E

36

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Solution

The correct option is A

36


B`s 15 min's work =145×15=13

Remaining work = 113=23

Now, 154 work is done by A in 1 min

23 work is done by A in 54×23=36 mins


Quantitative Aptitude

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