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      Question

      A quantity is increased by 15% and then again increased

      by 10%. What is the net percentage increase?
      A 32.5% Correct Answer Incorrect Answer
      B 42.5% Correct Answer Incorrect Answer
      C 26.5% Correct Answer Incorrect Answer
      D 18.8% Correct Answer Incorrect Answer

      Solution

      Let original value = 100 After 15% increase: Valueโ‚ = 100 + 15 = 115 After further 10% increase: Valueโ‚‚ = 115 + 10% of 115 = 115 + 11.5 = 126.5 Net increase = 126.5 โˆ’ 100 = 26.5 Net percentage increase = 26.5%

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