Tammy bought a nightstand that was marked down 60% from an original price of $50. If she paid 10% sales tax, what was the total cost of the nightstand?

Answer: the total cost of the nightstand is $22

Step-by-step explanation:

The original price of the night stand is $50. If the original price of the night stand was marked down by 60%, it means that the amount of money by which it was reduced would be

60/100 * 50 = 0.6 * 50 = 30

The new selling price would be

50 - 30 = $20

If she paid 10% sales tax, the amount of tax paid would be

10/100 * 20 = 0.1 * 20 = 2

Therefore, the total cost of the nightstand would be

20 + 2 = $22