Answer:
Option C: $30 is the original price of book.
Step-by-step explanation:
Let the original price of book be x
Given that:
Sale price = x - 40% of x
As it is given that the sale price was $18
So,
$18 = x - 40% of x
By simplifying:
$18 = x - 0.4x
$18 = 0.6x
Dividing both sides by 0.6:
x = $18/0.6
x = $ 30
So the original price of book will be $30
i hope it will help you!
Answer:
Option (c) $30.00
Explanation:
Let the original price be $x
Given the rate of discount is 40%
Selling (or sale) price of the book is = $18
The original price is calculated by the formula,
Selling Price = Original Price(1 – r%)
Substituting the values in the above equation,
[tex]18 = x (1-\frac{40}{100})[/tex]
[tex]18 = x (\frac{60}{100})[/tex]
[tex]x=\frac{1800}{60}[/tex]
Therefore, x = 30
Hence, option (c)is correct
