Rising price

The book first become more expensive by 5 euros. New price was later increased by 8%. After the second price increase book cost 46 euros.

What was the original price of the book?

Result

x =  37.59 Eur

Solution:

(x+5)(1+8100)=46 x=461+8/100−5=37.59  Eur (x+5)(1+\dfrac{ 8}{100}) = 46 \ \\ x = \dfrac{ 46} {1+8/100} - 5 = 37.59 \ \text{ Eur }

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