Notebook Price Increase

The notebook cost 10.50 euros after an increase of 40%. How many euros would it cost if it increased by only 20%?

Final Answer:

x =  9 Eur

Step-by-step explanation:

 (1+40/100) a = 10.50 a=10.50/(1+40/100)=215=7.5 Eur x=(1+20/100) a=(1+20/100) 7.5=9 Eur



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