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?

412.8

Explanation:

The price of one set of sheet is

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:

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

The amount of the discount is:

So the discounted price will be:

So, Carla will pay 412.8 soles.