Which of the following is the correct syntax to represent a percentage split of 40% for user A and 60% for user B in a system design context?

easy📝 Conceptual Q12 of 15

LLD - Design — Splitwise (Expense Sharing)

A{'A': '40%', 'B': '60%'}

B{'A': 40, 'B': 60}

C{'A': 0.4, 'B': 0.6}

D{'A': 4, 'B': 6}

Step-by-Step Solution

Solution:

Step 1: Understand percentage representation in decimals
Percentages are often represented as decimals between 0 and 1 in code for calculations.
Step 2: Evaluate options
{'A': 0.4, 'B': 0.6} uses decimals summing to 1, correct for percentage split. {'A': 40, 'B': 60} uses integers but not decimals. {'A': '40%', 'B': '60%'} uses strings which are not directly usable. {'A': 4, 'B': 6} uses incorrect smaller numbers.
Final Answer:
{'A': 0.4, 'B': 0.6} -> Option C
Quick Check:
Decimal form for percentages = {'A': 0.4, 'B': 0.6} [OK]

Quick Trick: Use decimals (0.4) not integers (40) for percentage splits [OK]

Common Mistakes:

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