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A sum of Rs. 20,000 is invested for 15 m...

A sum of Rs. 20,000 is invested for 15 months at the interest of 10% per annum compounded half yearly. What is the percentage gain, correct to one decimal place, at the end of 15 months?
20,000 रुपये की एक राशि 15 माह के लिए 10% प्रति वर्ष अर्धवार्षिक चक्रवृद्धि पर निवेश की जाती है | 15 माह के अंत में एक दशमलव स्थान तक लाभ प्रतिशत ज्ञात करें |

A

12.5

B

13.6

C

13

D

13.4

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