P takes twice as much time as Q or thrice as much time as R to finish a piece of work. They can finish the work in 2 days if work together. How much time will Q take to do the work alone?
A. = 2
B. 7
C. 8
D. t; Q takes 12/2 days = 6 days to complete the work
E. 9
F. t; x = 12
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