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Tom takes 3 days to do a piece of work while Jerry takes 1 day to do the same.Together they both can finish the work in 15 days.In how many days tom will

finish the work?


Work done by jerry in 1 day = x
work done by tom in 1 day = x/3

work done in 15 days by jerry = 15x
work done in 15 days by tom = 15x/3 = 5x

Total work done = 20x

days required by tom to do 20x work = 20x / x/3 = 60 days
1 5 1
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