Question : A sum of money at simple interest amounts to INR 212 in 2 years and to INR 224 in 4 years. The sum is:
Option 1: INR 400
Option 2: INR 200
Option 3: INR 100
Option 4: INR 500
Correct Answer: INR 200
Solution :
Amount for 2 years = INR 212
Amount for 4 years = INR 224
Simple interest = Amount – Principal
Simple interest for two years = 224 – 212 = INR 12
Principal sum = 212 – 12 = INR 200
Hence, the correct answer is INR 200.
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