Suppose I buy a laptop for ¥87 500 and keep it for 3 years
Other · Multi-part · AoPS · Mathematics · Ratios and Percents · Percentage Problems
Problem
Suppose I buy a laptop for ¥87 500 and keep it for 3 years. During this time it depreciates at an annual rate of 30%.
(1) Find its value after 3 years.
(2) By how much has the laptop depreciated?