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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.) 

    (245.98 + 198.12) ÷ (11.032 - 9.99) × 21.12

    = ?2 - 16.12 
    A 10 Correct Answer Incorrect Answer
    B 20 Correct Answer Incorrect Answer
    C 35 Correct Answer Incorrect Answer
    D 45 Correct Answer Incorrect Answer

    Solution

    ATQ, (245.98 + 198.12) ÷ (11.032 - 9.99) × 21.12 = ?2 - 16.12 (246 + 198) ÷ (112 - 10) × 21 ~ ?2 - 16 444 ÷ (121 - 10) × 21 ~ ?2 - 16 444 ÷ 111 × 21 ~ ?2 - 16 4 × 21 ~ ?2 - 16 84 ~ ?2 - 16 100 ~ ?2 ? ~ ±10

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