Three workers complete a job in 6 days. With a fourth worker of the same efficiency, the time taken is
A4 days
B4.5 days
C5 days
D5.5 days
Answer & Solution
Correct answer: B. 4.5 days
Total work = 3 x 6 = 18 worker-days. With 4 workers, 18 / 4 = 4.5 days.
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