Clovis wants to make a surprise visit to his uncle who lives out of town. He purchases an airline ticket for $69. There is a 15% sales tax on the price of the airline ticket. In addition he must pay a baggage fee of $20. When he arrives at the airport, Clovis takes a taxi to his uncle's house which is 8 miles from the airport. The taxi fee is $2.50 per mile. If Clovis has spent a total of $123.35 for the airline ticket and taxi, at what percent of his fare did Clovis tip the taxi driver?
The ticket costs $69 + 15% of $69 ($10.35) + $20 for baggage, or $99.35 total. That leaves $123.35 − $99.35 = $24 for the taxi, including the tip; the 8-mile fare is 8 × $2.50 = $20, so the $4 tip is $4 ÷ $20 = 20% of the fare. The correct choice is 20%.
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