[Solved] In the following code, what is the error that prevents correct discount application?price = 200 discount = 20 # intended as 20% final_price = price - discount print(final_price) | LLD

LLD - Design — Online Shopping Cart

In the following code, what is the error that prevents correct discount application?

price = 200
discount = 20  # intended as 20%
final_price = price - discount
print(final_price)

APrice should be multiplied by discount directly

BDiscount should be converted to decimal before calculation

CDiscount should be added to price

DNo error, code is correct

Step-by-Step Solution

Solution:

Step 1: Identify discount representation
Discount is 20 but intended as 20%, so it should be 0.2 in decimal.
Step 2: Correct calculation method
final_price should be price - (price * discount_decimal), not price - discount integer.
Final Answer:
Discount should be converted to decimal before calculation -> Option B
Quick Check:
20% = 0.2 decimal needed [OK]

Quick Trick: Convert percentage to decimal before subtracting [OK]

Common Mistakes:

Master "Design — Online Shopping Cart" in LLD

9 interactive learning modes - each teaches the same concept differently

More LLD Quizzes

In the following code, what is the error that prevents correct discount application?