Respuesta :

altavistard
Let x be the original price.  Mult. x by 1.30 results in the selling price, $520.
Thus, we equate 1.30x to $520 and then determine x:

       $520
x = --------- = $400.  The original price was $400.
        1.30

The original price was $400.

What is selling price?

The selling price is defined as a price after the original price has been increased or decraesed.

Let p be the original price.

Given that,

The original price(p) after an increase of 30%,

⇒ p + 0.30×p

⇒ 1.3p

According to question it became $520,

Equate 1.30p to $520

∴  1.30p = 520

p = 400

Thus, the original price was $400.

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