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A book is sold for $45 after a discount of 10%. What is the marked price of the
A book is sold for $45 after a discount of 10%. What is the marked price of the book?
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Practice Questions
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Q1
A book is sold for $45 after a discount of 10%. What is the marked price of the book?
$50
$55
$60
$65
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Let the marked price be x. Selling Price = x - 10% of x = 45. Thus, 0.9x = 45, so x = $50.
Questions & Step-by-step Solutions
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Q
Q: A book is sold for $45 after a discount of 10%. What is the marked price of the book?
Solution:
Let the marked price be x. Selling Price = x - 10% of x = 45. Thus, 0.9x = 45, so x = $50.
Steps: 9
Show Steps
Step 1: Understand that the selling price of the book after the discount is $45.
Step 2: Let the marked price of the book be represented by 'x'.
Step 3: A 10% discount means the selling price is 90% of the marked price.
Step 4: Write the equation for the selling price: Selling Price = Marked Price - Discount.
Step 5: Substitute the values into the equation: 45 = x - 0.1x.
Step 6: Simplify the equation: 45 = 0.9x.
Step 7: To find 'x', divide both sides by 0.9: x = 45 / 0.9.
Step 8: Calculate the value: x = 50.
Step 9: Conclude that the marked price of the book is $50.
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