AlgebraEasy–MediumPrice of a melon from two purchases
Algebra practice question
Ines bought 3 apples and a melon for $10. At the same prices, 3 apples cost $2 more than a melon. What is the price of a melon, in dollars?
Answer: 4
3a + m = 10 and 3a = m + 2 give (m + 2) + m = 10, so m = 4.
Common wrong answers
- If you answered 2
- 2 is the price of one apple.
- If you answered 6
- 6 is the cost of the three apples.
- If you answered 8
- 8 is 10 − 2 without halving.
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