AlgebraEasy–MediumMost items under a spending cap
Algebra practice question
A parent gives a child $100 for a school trip. The trip's coach ticket costs $25, and museum entries cost $4 each. What is the greatest number of museum entries the child can pay for?
Answer: 18
25 + 4m ≤ 100 gives 4m ≤ 75, m ≤ 18.75. The greatest whole number is 18.
Common wrong answers
- If you answered 19
- 19 entries would cost $101 with the ticket.
- If you answered 25
- 25 divides 100 by 4, ignoring the coach ticket.
- If you answered 31
- 31 comes from (100 + 25)/4, adding the ticket instead of subtracting.
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