Question

En una tienda de electrodomesticos , una nevera con un precio de 260€ fue rebajada un 15% ; al cabo de un mes volvieron a rebajarla otro 15%¿Cual es el precio después de la segunda rebaja? ¿Cuál es el indice de variación total?

Answer 1

Part 1) The price after the second discount is 187.85€

Part 2) The percentage of total variation is 27.75%

Explanation:

The question in English is

In an appliance store, a refrigerator with a price of 260€ was discounted by 15%; after one month it was discounted by another 15%. What is the price after the second discount? What is the percentage of total variation?

Part 1)

Find out the price after the second discount

we know that

`15\%=15/100=0.15`

A) The first discount is equal to

260€(0.15)=39€

The price after the first discount is equal to

260€-39€=221€

B) The second discount is equal to

221€(0.15)=33.15€

The price after the second discount is equal to

221€-33.15€=187.85€

Part 2) Find out the percentage of total variation

we know that

The original price of 260€ represent the 100%

by using proportion

Find out the percentage that represent (260€-187.85€)=72.15€

`(260)/(100)=(72.15)/(x)\\ \\x=72.15*100/260\\ \\x=27.75\%`