P and Q together can do a work in 12 days. P alone can do the same work in 36 days. In how many days can Q alone complete two-third part of the same work?
A. 12
B. 18
C. 21
D. 15
Answer: Option A
Solution (By Examveda Team)
Efficiency of Q = 2
So, required answer = $$\frac{{36 \times \frac{2}{3}}}{2}$$ = 12 days
This Question Belongs to Arithmetic Ability >> Time And Work
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