Answer:
The original price of computer was $1500.
Step-by-step explanation:
Given:
The price of a computer was $1,200 after applying a 20% discount.
Now, to get the original price of the computer.
Let the original price be [tex]x[/tex].
As given discount is 20%.
So, the price after discount = $1200.
Thus, $1200 is 80% of the price of computer. (100% - 20% = 80%.)
So, $1200 is equivalent to 80%.
And, [tex]x[/tex] is equivalent to 100%.
Now, by using cross multiplication we get the original price of computer:
⇒ [tex]\frac{1200}{80} =\frac{x}{100}[/tex]
⇒ [tex]120000=80x[/tex]
Dividing both sides by 80 we get:
⇒ [tex]1500=x[/tex]
Therefore, the original price of computer was $1500.