A and B together can do a piece of work in 6 whole 2 by 3 days but b alone can do it in 10 days how long will it take to do it alone
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I'm going to be able to increase blood supply to you all your friends and family
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A+ Bs one day work=3/20
B alone. ... 1/10
A alone=3/20 - 1/10=3/20 -2/20
1/2 0
A will do it in 20 days
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