Understanding Chain Discounts and Net Price

This video tutorial explains chain discounts, which involve applying multiple discounts in succession rather than simply adding them. It demonstrates how to calculate the net price and the single equivalent rate of discount using examples. The video also provides formulas for calculating net prices and single equivalent rates, and includes problem-solving exercises to reinforce the concepts.

What is the primary focus of chain discounts?

• To eliminate discounts altogether

• To explore the relationship between net price, list price, and discount amount

• To apply a single discount rate

• To increase the list price

How should multiple discount rates be combined?

• By multiplying them directly

• By applying them in succession

• By ignoring the smaller discount

• By adding them together

In the example, what is the net price after applying a 20% and then a 25% discount on a $100 item?

• $40

• $60

• $75

• $50

What is the single equivalent rate of discount for a 20% and 25% discount series?

• 30%

• 45%

• 40%

• 35%

What is the result of applying a 20% discount on a $100 item?

• $80

• $90

• $70

• $60

What does the net price formula for a discount series involve?

• Dividing the list price by the number of discounts

• Multiplying the complements of the discount rates with the list price

• Adding all discount rates

• Subtracting the list price from the net price

How can the net price formula be extended?

• By adding more discounts

• By using only two discounts

• By ignoring additional discounts

• By applying it to cases with three or more discounts

What is the net price formula for two discount rates?

• N = (1 - d1)(1 - d2)L

• N = d1 + d2 + L

• N = d1 * d2 * L

• N = (d1 - d2)L

What happens to the net price if the order of applying discounts is changed?

• The net price decreases

• The net price remains the same

• The net price becomes zero

• The net price increases

What is the formula to calculate the single equivalent rate of discount?

• de = 1 - [(1 - d1)(1 - d2)]

• de = d1 + d2

• de = d1 * d2

• de = (d1 - d2) / 2