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Your friend goes to the local market to buy food and water for your next journey. He finds a stall that has a 20% sale on all items. He spends $30 before the discount.

How much does the shopping cost after the discount?

Your friend says that 20% is not as good a deal as 1/4 . is he correct?

Respuesta :

finnforthewin

He spends $24 after the discount. Your friend is correct, 1/4 would be 25%.

facundo3141592

We will see that a deal of 1/4 is equivalent to a discount of 25%, so your friend is correct.

Is your friend correct?

The discount of the items on sale is of the 20%.

Now, suppose that we apply a discount of 1/4 (so we reduce the cost of the item by 1/4), then for an item of price P, the discounted price would be:

P' = P - (1/4)*P = P*(3/4) = P(0.75)

This is equivalent to a discount of the 25%.

P' = P*(1 - 0.25)

So from this, we conclude that your friend is correct, a discount of 20% is not as good as a discount of 25%.

If you want to learn more about percentages, you can read:

https://brainly.com/question/843074

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