Question

Walmart offers a shirt for $45. One week later, they offer the shirt at 15% off. The shirt still doesn't sell, so after another week, Walmart reduces its new price by 20%. How much does the shirt cost now? Walmart offers a shirt for $ 45 . One week later , they offer the shirt at 15 % off . The shirt still doesn't sell , so after another week , Walmart reduces its new price by 20 % . How much does the shirt cost now ?​

Answer 1

$30.60

Explanation:

So when a problem says some price is x% off, it means the current price is now (100-x)% of the original value. So if the shirt is 15% off, the current price is 85% the original value. To find 85% of a number you simple convert the percentage into a decimal, by dividing it by 100 and multiply that decimal by the value. So in this case 85/100 = 0.85. And then 0.85 * 45 = 38.25. Now that it reduces its price by 20%, it's 80% the original value. 38.25 * 0.8 = 30.60.