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      Question

      A smartphone is billed at Rs. 630 after two successive

      reductions of x% and 30%, respectively. The sticker price is Rs. 1000. Find x.
      A 12 Correct Answer Incorrect Answer
      B 18 Correct Answer Incorrect Answer
      C 10 Correct Answer Incorrect Answer
      D 22 Correct Answer Incorrect Answer

      Solution

      ATQ, 1000 Γ— (0.7) Γ— {(100 - x)/100} = 630 Or, 700 Γ— (100 - x) = 63000 Or, 100 - x = 90 Or, x = 10

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