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₹8,000 is invested for 1 year at 10% per annum, compounded half-yearly. Find the compound interest. (answer in ₹)

Competition practiceSimple & Compound Interest
  • A820
  • B800
  • C840
  • D810

Step-by-Step Solution

Half-yearly: rate 5% per half-year for 2 half-years. Amount = = ₹8820. CI = ₹820.
Answer: A) 820

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