A price of $800 rises by 10% and then falls by 10%. What is the final price?

Answer and explanation

Correct answer: D. $792

  1. Step 1: After the rise the price is 800 x 1.1 = 880.
  2. Step 2: The fall applies to the new price: 880 x 0.9 = 792.
  3. Step 3: The final price is lower than the start because the fall is taken from a bigger amount.
Answer
$792.

Practise more Mathematics: Percentages and Interest.

Free questions with an explanation for every one, and full timed FUVEST (University of São Paulo Entrance Exam) mock tests.