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A can do a work in 6 hours, while B can do it in 8 hours with the help of C, they completed the work in hours then C can take ____ hour to complete the work alone.

Class: 9

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Detailed Solution

work done by A in 1 hour =

work done by B in 1 hour =

let c complete work in x hours
work done by c in 1 hour =

All together they complete in

hours
=

hours

Hence C can do work complete in

hours.

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