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      Question

      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.) 469.78 + 129.13 – 559.55 = 289.66 – 189.23 + ?
      A - 60 Correct Answer Incorrect Answer
      B 90 Correct Answer Incorrect Answer
      C 75 Correct Answer Incorrect Answer
      D - 80 Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      ATQ,

      469.78 + 129.13 – 559.55 = 289.66 – 189.23 + ?

      470 + 130 – 560 ~ 290 – 190 + ?

      40 ~ 100 + ?

      ? ~ 40 – 100

      ? ~ -60

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