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A. 1
B. 2
C. 3
D. 4

Work done by Q in 1 day = 1/12
Work done by P in 1 day = 2 × (1/12) = 1/6
Work done by P and Q in 1 day = 1/12 + 1/6 = ¼
=> P and Q can finish the work in 4 days

Correct Answer: D. 4

Last Updated: November 19, 2019