A sum of ₹1200 becomes ₹1344 in 2 years at a certain rate of simple interest. What is the rate of interest per annum? ₹1200 की राशि साधारण ब्याज की एक निश्चित दर पर 2 वर्षों में ₹1344 हो जाती है। प्रति वर्ष ब्याज की दर क्या है?
A
5% (5%)
B
6% (6%)
C
7% (7%)
D
8% (8%)
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Correct Answer 6%
Explanation
Interest = 1344 - 1200 = 144. Time = 2 years. Using I = (P*R*T)/100: 144 = (1200*R*2)/100 => 144 = 24R => R = 6%.