A can do a certain job in 12 days. b is 60% more efficient than a how many days doesb alone take to do the same job?
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Let, Total Work Unit = 120 Units
>> A can finish in 12 days = 120 unit work
i.e. A can finish in 1 days = 10 unit work
i.e. B can finish in 1 days = 10+(60/100)*10 = 16 unit work
>> Days in which B will complete the work alone = 120/16 = 30/4 = 7.5 days
>> A can finish in 12 days = 120 unit work
i.e. A can finish in 1 days = 10 unit work
i.e. B can finish in 1 days = 10+(60/100)*10 = 16 unit work
>> Days in which B will complete the work alone = 120/16 = 30/4 = 7.5 days
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Answer:
7.5 days
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