Let’s solve each problem one at a time.
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Problem 1:
A clothing shop is having a 40% off sale.
How much would a shopper have to pay for a $20 sweater with a 40% discount?
Step 1: Find out how much the discount is in dollars.
40% of $20 = 0.40 × 20 = $8
Step 2: Subtract the discount from the original price.
$20 - $8 = $12
So, the shopper pays $12.
✔ Check: 40% off means you pay 60% of the original price.
60% of $20 = 0.60 × 20 = $12 → Same answer. Good!
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Problem 2:
There are 35 students in Mrs. Brown’s class. 20% of her students received a B on the test.
How many students received a B?
Step 1: Find 20% of 35.
20% = 0.20
0.20 × 35 = 7
So, 7 students received a B.
✔ Check: 10% of 35 is 3.5, so 20% is double that → 7. Correct!
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Final Answer:
1. 12 dollars
2. 7 students
Parent Tip: Review the logic above to help your child master the concept of percent word problems worksheet.
