Problem-Solving and Data AnalysisVery hardNet effect of a fall and a rise
Problem-Solving and Data Analysis practice question
A share price falls by 20% in one week and then rises by 20% the next week. The final price is what percent of the original price?
Answer: 96
0.8 × 1.2 = 0.96, or 96%.
Common wrong answers
- If you answered 4
- 4 is the percent lost, not the final percent.
- If you answered 100
- 100 assumes the changes cancel.
- If you answered 104
- 104 adds 20% to the fallen price using the original base; the product 0.8 × 1.2 is 0.96.
More Problem-Solving and Data Analysis questions
- Very hard
An item priced at $200 is first marked down by 20%, and then an additional 10% is taken off the reduced price.… - Very hard
A data set of 6 test scores has a mean of 78. After a 7th score is added, the mean rises to 80. What was the 7… - Very hard
If one of the chips that failed inspection is selected at random, what is the probability that it was produced… - Very hard
The regular price of a bicycle at a shop was increased by 25%. Later, during a sale, this increased price was … - Very hard
What is the result when the mean number of pets is subtracted from the median number of pets? - Very hard
What is the value of x?
Not affiliated with the College Board. SAT is a trademark of the College Board.