AlgebraEasy–MediumGreatest distance within a budget
Algebra practice question
A taxi ride costs 3 dollars plus 2 dollars for each kilometre. Maya has 25 dollars. What is the greatest whole number of kilometres she can ride?
Answer: 11
3 + 2k ≤ 25 gives k ≤ 11.
Common wrong answers
- If you answered 12
- 12 ignores the 3-dollar charge.
- If you answered 14
- 14 adds 3 instead of subtracting.
- If you answered 22
- 22 stops at 2k ≤ 22.
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