AlgebraMediumGreatest number within a remaining budget
Algebra practice question
A student has $200 for a trip and must keep at least $5 in reserve. Each museum ticket costs $15. What is the greatest number of museum tickets the student can buy?
Answer: 13
15n ≤ 200 − 5 = 195, so n ≤ 13.
Common wrong answers
- If you answered 12
- 12 leaves $20 — allowed, but not the greatest number.
- If you answered 14
- 14 tickets cost $210, more than the whole $200.
- If you answered 13.67
- 13.67 is 205/15; tickets are whole, and the reserve is subtracted, not added.
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