1. A and B together can complete a particular task in 6 days. If A alone can complete the same task in 10 days, how many days will B take to complete the task if he works alone ?
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By: anil on 05 May 2019 01.24 am
Let the total work to be done = 30 units Rate at which A alone finishes the task = $$frac{30}{10}$$ = 3 units/day Rate at which A & B together finishes the work = $$frac{30}{6}$$ = 5 units/day => Rate at which B alone finishes the work = 5 - 3 = 2 units/day $$ herefore$$ Time taken by B to complete the task = $$frac{30}{2}$$ = 15 days
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