Quantitative Aptitude :: Time and Work - Discussion
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Choose the correct option.
A works twice as fast as B. If B can complete a work in 12 days independently, the number of days in which A and B can together finish the work In :
A4 days
B6 days
C8 days
D18 days
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Solution: If B can complete a work in 12 days then Acc. to the question A can do it in 6 days
So 1 day work of both A and B are 1/6 and 1/12 respectively
hence Both working together in 1 day can complete 1/6 1/12= 1/4 part of the work so the complete work can be done in 4 days.
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Solution: If B can complete a work in 12 days then Acc. to the question A can do it in 6 days
So 1 day work of both A and B are 1/6 and 1/12 respectively
hence Both working together in 1 day can complete 1/6 1/12= 1/4 part of the work so the complete work can be done in 4 days.
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