AlgebraEasy–MediumNumber of chairs from a delivery total
Algebra practice question
A furniture shop delivered a table costing $15 and some chairs costing $3 each for a total of $42. How many chairs were delivered?
Answer: 9
15 + 3c = 42 gives 3c = 27, so c = 9.
Common wrong answers
- If you answered 14
- 14 divides 42 by 3, ignoring the table.
- If you answered 19
- 19 adds 15 before dividing.
- If you answered 27
- 27 is the cost of the chairs in dollars.
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