Question

Zaynab buys a mobile phone in a sale. In the sale, there is 30% off. Zaynab pays £72.80 for the mobile

phone. How much did it cost before the sale?"

Answer 1

Using the concept of percentages, if Zaynab received a 30% discount and paid £72.80, the original price of the mobile phone was £104 before the sale.

Step-by-step explanation:

Zaynab bought a mobile phone with a 30% discount and paid £72.80 for it. To find the original price before the sale, we need to use the concept of percentages. Since Zaynab received a 30% discount, this means she paid 70% of the original price.

To calculate the original price, we set up an equation where the original price (which we will call 'P'), minus 30% of it, equals £72.80:

0.70 * P = £72.80

Now, we divide £72.80 by 0.70 to find the original price:

P = £72.80 / 0.70

P = £104

Therefore, the mobile phone cost £104 before the sale.