Question 53
Kanti and Jiya together can finish a work in 3 days. If Jiya alone can finish the work in 6 days, then in how many days can Kanti alone finish the work?
Solution
Let's assume the total work is 6 units.
Kanti and Jiya together can finish a work in 3 days.
The efficiency of Kanti and Jiya together = $$\frac{6}{3}$$ = 2 units/day
If Jiya alone can finish the work in 6 days.
The efficiency of Jiya = $$\frac{6}{6}$$ = 1 unit/day
The efficiency of Kanti = 2-1 = 1 unit/day
Time taken by Kanti alone to finish the work = $$\frac{6}{1}$$
= 6 days
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