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Q: A group of men can complete a job in K hours. After every 4 hours, half the number of men working at that point of time leave the job. Continuing this way if the job is finished in 16 hours, what is the value of K ?

A. 7 hrs
B. 7.5 hrs
C. 8 hrs
D. 8.25 hrs
Answer» C. 8 hrs


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