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Question
Efficiency of A is 33.33% more than that of B. B takes 24 days complete a work. How many days A will take to complete the work?
Efficiency of A is 33.33% more than that of B. B takes 24 days complete a work. How many days A will take to complete the work?
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Solution
The correct option is C 18
Efficiency x time = work( constant)
Efficiency of A is 33.33% (
) more. So time taken by A will be 25 % less than that by B => A will take 18 days.
Alternatively: -
Let the work done by B in a day = 33 units
The same work is done by A in a day = 44 units
Work done by B in 24 days = 33 x 24 units
The same work is done by A = 33 x 24/ 44 = 18 days
Efficiency x time = work( constant)
Efficiency of A is 33.33% () more. So time taken by A will be 25 % less than that by B => A will take 18 days.
Alternatively: -
Let the work done by B in a day = 33 units
The same work is done by A in a day = 44 units
Work done by B in 24 days = 33 x 24 units
The same work is done by A = 33 x 24/ 44 = 18 days
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