What would 1/27 -1 be?
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Since each barber works 8 hours per day, it means that the barber shop conducts 112 haircuts in 8 hours. This means that it conducts
cuts per hour. Every barber can conduct two haircuts per hour. This means that a generic number of barbers conducts
cuts per hour. But we already know that the shop conducts 14 cuts per hour, so the number of barbers is given by