Question

Carla observa en una tienda la promoción de "2x1" en juegos de sábanas. Asimismo, advierte que si tiene la tarjeta de esta tienda, hay un descuento adicional del 20 %. Sabiendo que el precio de lista del juego de sábanas es 129 soles, ¿cuánto pagará Carla por 8 juegos de sábanas?

Answer 1

Answer:

412.8

Explanation:

The price of one set of sheet is

$p=129$

Here Carla wants to buy 8 sets of sheets; however, there is a 2x1 discount, this means that the price she pays will be the price of only 4 sets of sheets, so:

$P=4p=4(129)=516$

However, we are also told that there is an additional 20% discount.

The amount of the discount is:

$d=0.20P = 0.20(516)=103.2$

So the discounted price will be:

$P'=P-d=516-103.2=412.8$

So, Carla will pay 412.8 soles.