Problem-Solving and Data AnalysisHardBill with tax and a tip
Problem-Solving and Data Analysis practice question
A restaurant meal costs $80 before tax. A 5% sales tax is added, and the customer leaves a tip equal to 15% of the pre-tax price. What is the total amount the customer pays, in dollars?
Answer: 96
Tax: 0.05 × 80 = 4. Tip: 0.15 × 80 = 12. Total: 80 + 4 + 12 = 96.
Common wrong answers
- If you answered 84
- 84 forgets the tip.
- If you answered 92
- 92 forgets the tax.
- If you answered 96.6
- 96.6 tips 15% of the after-tax amount (84); the tip is 15% of the PRE-tax price.
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