If a is 20% less efficient than b and b alone can complete a work in a 20 days in how many days can a and b together complete it
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Bhai tera bhai dega mast solution
Ye jo efficiency hoti h na to time ka ratio interchange ho jata h iske karan
Jo jyada kaam krega wo din lega
Ye jo efficiency hoti h na to time ka ratio interchange ho jata h iske karan
Jo jyada kaam krega wo din lega
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