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    • Question

      447.79 ÷ √(√2400) + 30.94 × 6.07 – 5.08 × 21.96

      = ? What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
      A 175 Correct Answer Incorrect Answer
      B 165 Correct Answer Incorrect Answer
      C 115 Correct Answer Incorrect Answer
      D 140 Correct Answer Incorrect Answer
      E none of these Correct Answer Incorrect Answer

      Solution

      ATQ, 447.79 ÷ √(√2400) + 30.94 × 6.07 – 5.08 × 21.96 = ? 448 ÷ √(√2401) + 31 × 6 – 5 × 22 ~ ? 448 ÷ √49 + 186 – 110 ~ ? 448 ÷ 7 + 76 ~ ? 64 + 76 ~ ? ? ~ 140

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