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प्रश्न
Pradeep gave Rs.16000 to a friend for 1.5 years at 15% p.a. compounded semi-annually. Find the interest earned by him at the end of 1.5 years.
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उत्तर
Amount =`"P"(1 + "r"/200)^(2"t")`
Amount = `16000 (1 + 15/200)^3` = Rs. 19876.75
C = 19876.75 - 16000 = 3876.75
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