AlgebraEasy–MediumOriginal price from a percent rise given as an amount
Algebra practice question
The price of a ticket rose by $12, which was a 15% increase. What was the price, in dollars, before the rise?
Answer: 80
0.15p = 12 → p = 80.
Common wrong answers
- If you answered 8
- 8 comes from 12 ÷ 1.5, using 1.5 instead of 0.15.
- If you answered 92
- 92 is the price after the rise.
- If you answered 1.8
- 1.8 is 15% of 12.
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