Q: P can complete a work in 4 hours. Q and R together can complete the same work in 3 hours, while P and R can complete it in 2 hours. If Q alone does this work then how much time will he take to complete this work?
A.
12 hours
B.
8 hours
C.
10 hours
D.
15 hours
Correct Answer:
Option A -
Explanations:
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