Calculating Discounts and Percentages

The video tutorial covers various percentage calculations, including discounts on sweaters, jeans, and video games, as well as calculating tips and taxes. It explains how to find the original price from a sale price, determine the number of students receiving an 'A', and compare different discount offers. The tutorial emphasizes the importance of correctly converting percentages to decimals to avoid errors.

If a sweater originally costs $15 and is on sale for 20% off, what is the sale price?

• $12

• $13

• $10

• $11

How much is the discount on a $15 sweater with a 20% discount?

• $2

• $3

• $5

• $4

If a sale offers 15% off, what percentage of the original price is left?

• 80%

• 90%

• 75%

• 85%

What is the original price if the sale price is $11.50 after a 15% discount?

• $15.00

• $14.00

• $13.53

• $12.50

In a class of 30 students, if 20% received an 'A', how many students is that?

• 4

• 7

• 5

• 6

What percentage of students received an 'A' if 6 out of 30 students did?

• 20%

• 15%

• 10%

• 25%

If a dinner bill is $42 and a 15% tip is given, how much is the tip?

• $6.00

• $6.30

• $5.00

• $7.00

What is the total bill if a $42 dinner has a 15% tip added?

• $48.30

• $45.00

• $50.00

• $47.00

If jeans are $25 and have a 15% discount, what is the discount amount?

• $4.25

• $3.50

• $4.00

• $3.75

What is the final price of jeans originally $25 with a 15% discount?

• $23.00

• $21.25

• $22.00

• $20.00