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Question

avinash and febin together can paint a wall in 8 days. avinash alone can paint the wall in 12 days . how long will febin take to paint the wall himself alone?

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Solution

Let the no. of days taken by Febin to paint the wall alone = xNo. of days taken by Avinash to paint the wall alone = 12Febin's 1 day's work = 1xAvinash's 1 day's work = 112It is given that both Avinash and Febin together can paint the wall in 8 days.So, Febin + Avinash's 1 day's work = 181x + 112 = 181x = 18 - 112 = 3 - 224 = 124x = 24So, numberof days taken by Febin to paint the wall alone = 24

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