Kushal and Nainsuk while working together can complete a piece of work in 64 hours while Nainsuk alone can do it in 96 hours . How long will Kushal take to complete the work alone ?
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192 hours
conside kushal as x and mansik as y
then, the speed of kushal is 1/x and that of nainsuk is 1/y
Both can complete work in 64 hours means speed of completing work is 1/64 i.e. total of both
Therefore equation formed is = 1/x +1/y = 1/64
Nainsuk complete the work in 96 hours means speed is 1/96
substitute speed of nainsuk in equation
Therefore ,1/x + 1/96 = 1/64
Value of x from this equation come as 192
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