Question
Ali the barber shaved 32% of his customers and gave a
haircut to 64% of his customers. He charged Rs. 6 for a shave and Rs. 4 for a haircut. If 15% of customers who opted for a shave also had a hair-cut, what were Ali's earnings if he had 75 customers (in Rs.)?Solution
Total customers = 75 Numbers of customers shaved = 75 x (32/100) = 24 Number of customers who got hair cut = 75 x (64/100) = 48 ∴ His total income= (24 x 6) + (48 x 4) = 336
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