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      Question

      What approximate value should come in place of question

      mark in the following question? (39.9 × 4.1 + 59.8 × 5.9) ÷ 9.9 = ?
      A 80 Correct Answer Incorrect Answer
      B 10 Correct Answer Incorrect Answer
      C 52 Correct Answer Incorrect Answer
      D 40 Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      Approximate: 39.9 ≈ 40, 4.1 ≈ 4 59.8 ≈ 60, 5.9 ≈ 6 9.9 ≈ 10 Numerator ≈ (40 × 4) + (60 × 6) = 160 + 360 = 520 Required value ≈ 520 ÷ 10 = 52

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