Question

You are on vacation and want to buy a pair of sunglasses for $15 or less. You find a pair with a price tag of $11. The cashier says the total cost will be $11.91.

Is this correct?
Yes, this is the correct amount with tax.
N0, this is not the correct amount.
Explain your thinking.

Answer 1

No, this is not the correct amount.

Explanation:

Assuming this purchase is being made in the USA, the average federal tax rate on purchased goods is between 2.9% and 7.25% of the price. Let's be generous and assume that wherever you're making this purchase, the sales tax is 7.25%.

7.25% of 11 = .7975, or .80 cents. Add that to 11 to get $11.80.

The extra 91 cents tax is around 12.09% tax which is a lot higher than normal. You're being ripped off!