AlgebraEasy–MediumFood cost per person from a bill with tips
Algebra practice question
Three friends split a $21 restaurant bill equally. Each person's share included a $2 tip. How many dollars did each person pay for food alone?
Answer: 5
3(f + 2) = 21 gives f + 2 = 7, so f = 5.
Common wrong answers
- If you answered 7
- 7 is each person's total share, including the tip.
- If you answered 19
- 19 subtracts a single tip from the bill.
- If you answered 6.33
- 6.33 subtracts one $2 tip from the whole bill before dividing.
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