Home
Class 12
MATHS
A book was on sale for 40% off its origi...

A book was on sale for 40% off its original price. If the sale price of the book was $18.00, what was the original price of the book? (Assume there is no sales tax.)

A

7.2

B

10.8

C

30

D

45

Text Solution

Verified by Experts

The correct Answer is:
C
Let x represent the original price of the book. Then, 40% off of x is (1 − 0.40)x, or 0.60x. Since the sale price is $18.00, then 0.60x = 18. Dividing both sides of this equation by 0.60 yields x = 30. Therefore, the original price of the book was $30.
Choice A is incorrect and may result from computing 40% of the sale price. Choice B is incorrect and may result from computing 40% off the sale price instead of the original price. Choice D is incorrect and may result from computing the original price of a book whose sale price is $18 when the sale is for 60% off the original price.
Promotional Banner

Similar Questions

Explore conceptually related problems

After a 20% increase, the new price of a radio is $78.00. What was the original price of the radio?

A big-scores TV is on sale at 15% off the regular price. If the regular price of the TV is $420, what is the sale price?

After a dicount of 15%, the price of a shirt is $51. What was the original price of the shirt?

After a 20% hike, the cost of Chinese Vase is Rs 2000. What was the original price of the object?

On decreasing the price of a car by 6% , its value becomes Rs 249100. What was the original price of the car?

The price of a toaster was originally x dollars. Later , the toaster went on sale at a 20 percent discount , and was eventually sold for $50.40 after an additional 10 percent discount off the sale price. What was x , the original price , in dollars , of the toaster ?

A store reduces the price of a CD player by 20% and then reduces that price by 15%. If the final price of the CD player is $170, what was its original price?

The value of a car is depreciating at 5% per year and is 3,15,875 afer 2 years . What was its original price?

A store offers a 4% discount if a consumer pays cash rather than paying by credit card. If the cash price of an item is $84.00, what is the credit card purchase price of the same item?