Answer and explanation

Correct answer: B. 54 euros

  1. Step 1: 12 % means 12/100. Step 2. 12/100 x 450 = 54 euros. Answer: 54 euros. Why not the others: 540 euros: the percentage was divided by 10 instead of 100. 37.5 euros: the amount was divided by the percentage. 504 euros: the percentage was added to the amount.

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