Shopping center

The shopping center buys bikes from the manufacturer for 180 €. It sells them for a sale price of 250 €. However, in the advertising for the sale of these goods, the shopping center spent 20% of the selling price of all bicycles in stock. How many bikes did the shopping center sell if they were to get a 500 € profit?

Correct answer:

n =  25

Step-by-step explanation:

n·(250-180) - 20/100 · 250·n = 500

2000n = 50000

n = 50000/2000 = 25

n = 25

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