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      Question

      245.67 + 20.05² + ?³ = √961.89 *

      34.02 What approximate value should come in the place of (?) in the following questions? (Note:- You don't need to calculate the exact values)
      A 13 Correct Answer Incorrect Answer
      B 8 Correct Answer Incorrect Answer
      C 17 Correct Answer Incorrect Answer
      D 3 Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      ATQ,

      245.67 + 20.05² + ?³ = √961.89 * 34.02

      246 + 20² + ?³ = √962 * 34

      246 + 400 + ?³ = 31 * 34

      646 + ?³ = 1054

      ?³ = 408

      ? ≈ 8

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