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Q: An amount doubles itself in 15 years. what is the rate of interest ?

  • 1
    7.85 %
  • 2
    9.41%
  • 3
    6.66 %
  • 4
    4.21 %
  • Show Answer
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Answer : 3. "6.66 %"
Explanation :

Answer: C) 6.66 % Explanation: Let the principle be Rs. PAs the amount double itself the interest is Rs. P tooSo P = P x r x 15/100=> r = 100/15 = 20/3 % = 6.66 %.

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