John bought one book and paid the price marked inside the book plus sales tax with a $20 bill. He received exact change, which was less than $5. The sales tax was 9% of the book’s marked price. Which of the following must be true? I. The marked price of : Crackverbal Support

John bought one book and paid the price marked inside the book plus sales tax with a $20 bill. He received exact change, which was less than $5. The sales tax was 9% of the book’s marked price. Which of the following must be true? I. The m Print

Modified on: Tue, 12 Oct, 2021 at 12:28 PM

CONCEPT: The question is based on basics of Percentage

SOLUTION:

The Marked Price(M.P) and tax in total is 20$
9% is taxed on the MP.
Separating MP and Tax we have
MP= 20/1.09= 18.35 (approx),
Thus the amount of tax paid= 20-18.35=1.65$(approx)

Based on the values of marked price and tax we have just calculated, only I and II remain valid.
III is invalid because sales tax is more than 1.50$.
Thus, I and II both are correct. Hence Option (C)

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John bought one book and paid the price marked inside the book plus sales tax with a $20 bill. He received exact change, which was less than $5. The sales tax was 9% of the book’s marked price. Which of the following must be true? I. The m Print

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