LLD - Design — Online Shopping Cart
Which syntax correctly applies a 10% discount to a price variable in Python?
Which syntax correctly applies a 10% discount to a price variable in Python?
easy🧠 Conceptual Q3 of Q15
Step-by-Step Solution
Solution:
Step 1: Understand percentage discount calculation
A 10% discount means paying 90% of the price, so multiply by 0.9.Step 2: Check each option
Only multiplying price by 0.9 correctly applies 10% off.Final Answer:
discounted_price = price * 0.9 -> Option DQuick Check:
10% off = multiply by 0.9 [OK]
Quick Trick: Multiply price by (1 - discount%) to apply discount [OK]
Common Mistakes:
MISTAKES- Adding discount instead of subtracting
- Dividing price incorrectly
Master "Design — Online Shopping Cart" in LLD
Want More Practice?
15+ quiz questions · All difficulty levels · Free
Free Signup - Practice All QuestionsMore LLD Quizzes