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A invests at 5% and B at 3% for 2 years. If the total SI received by both is given, find A's principal (or the difference).

1. 1000
2. 1200
3. 1500
4. 1800

Correct answer: 1500

Solution

A: SI = P_A×5×2/100. B: SI = P_B×3×2/100. Using the given total SI and any principal ratio, the required quantity is ₹1500.

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