Problem-Solving and Data AnalysisEasy–MediumPercent increase in a price
Problem-Solving and Data Analysis practice question
A bicycle that cost $80 last year costs $100 this year. By what percent did its price increase?
Answer: 25
The increase is 100 − 80 = $20, and as a fraction of the ORIGINAL price that is 20/80 = 0.25 = 25%.
Common wrong answers
- If you answered 20
- 20% is 20/100, dividing by the new price; percent change is measured against the original, 80.
- If you answered 80
- 80 is the original price, not the percent.
- If you answered 125
- 125% is the new price as a percent of the old; the INCREASE is 125% − 100% = 25%.
More Problem-Solving and Data Analysis questions
- Easy–Medium
A jacket originally priced at $80 is discounted by 25%. What is the sale price? - Easy–Medium
A bag contains 3 red, 5 blue, and 2 green marbles. If one marble is drawn at random, what is the probability i… - Easy–Medium
A recipe uses 2 cups of flour to make 3 servings. How many cups of flour are needed for 12 servings? - Easy–Medium
What is the median of the data set 4, 7, 7, 9, 13? - Easy–Medium
The ratio of dogs to cats at a shelter is 5 to 3. If there are 40 dogs, how many cats are there? - Easy–Medium
A printer produces 8 pages every 5 seconds. At this rate, how many pages does it produce in 1 minute?
Not affiliated with the College Board. SAT is a trademark of the College Board.