LLD - Design — Splitwise (Expense Sharing)A split strategy is defined as {'A': 50, 'B': 60} with a total amount of 100. What is the error in this setup?ASplit values are equal but amounts differBSplit values are percentages but sum to 110%CSum of splits exceeds total amountDNo error, setup is correctCheck Answer
Step-by-Step SolutionSolution:Step 1: Calculate sum of split valuesSum is 50 + 60 = 110, which is greater than total 100.Step 2: Identify inconsistencyExact split amounts cannot exceed total amount.Final Answer:Sum of splits exceeds total amount -> Option CQuick Check:Sum of splits must not exceed total [OK]Quick Trick: Sum of exact splits must equal total amount [OK]Common Mistakes:Ignoring sum checkAssuming percentages without % signConfusing equal and exact splits
Master "Design — Splitwise (Expense Sharing)" in LLD9 interactive learning modes - each teaches the same concept differentlyLearnWhyDeepArchTryChallengeDesignRecallScale
More LLD Quizzes Advanced LLD Concepts - Why advanced concepts handle production systems - Quiz 8hard Advanced LLD Concepts - Event-driven design - Quiz 12easy Design — Chess Game - Piece movement rules (polymorphism) - Quiz 9hard Design — Food Delivery System - Restaurant, Menu, Order classes - Quiz 10hard Design — Hotel Booking System - Room type hierarchy - Quiz 9hard Design — Online Shopping Cart - Why e-commerce tests real-world complexity - Quiz 13medium Design — Online Shopping Cart - Notification on state change - Quiz 13medium Design — Online Shopping Cart - Pricing strategy (discounts, coupons) - Quiz 14medium Design — Online Shopping Cart - Pricing strategy (discounts, coupons) - Quiz 6medium Design — Splitwise (Expense Sharing) - Balance calculation algorithm - Quiz 9hard