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.)

    12.99 × 9.99 + ? × 7 + 240.001 = 21.012 

    A 46 Correct Answer Incorrect Answer
    B 26 Correct Answer Incorrect Answer
    C 10 Correct Answer Incorrect Answer
    D 19 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ, 12.99 × 9.99 + ? × 7 + 240.001 = 21.012 13 × 10 + ? × 7 + 240 ~ 212 130 + ? × 7 + 240 ~ 441 ? × 7 ~ 441 - 370 ? × 7 ~ 71 ? ~ 10

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