Respuesta :
Answer:
She made the profit of $ 20
Step-by-step explanation:
Given,
The original cost price of the bicycle = $ 50,
After selling it to $ 60,
Profit = selling price - cost price = 60 - 50 = $ 10,
Again after purchasing it for $ 70 and selling it to $ 80,
Profit = 80 - 70 = $ 10
Hence, the total profit = 10 + 10 = $ 20