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    Question

    What is the approximate value that should come in place of question mark (?) in the following questions? (You are not required to calculate the exact value)

    ³√? × 33.97 + 59.99 × 28.9

    – 48.98 × 21.42 = 1085.344
    A 1500 Correct Answer Incorrect Answer
    B 1200 Correct Answer Incorrect Answer
    C 1600 Correct Answer Incorrect Answer
    D 1420 Correct Answer Incorrect Answer
    E 1331 Correct Answer Incorrect Answer

    Solution

    ³√? × 33.97 + 59.99 × 28.9 – 48.98 × 21.42 = 1085.344 => ³√? × 34 + 60 × 29 – 49 × 21 = 1085 => ³√? × 34 + 1740 – 1029 = 1085 => ³√? × 34 = 1085 - 711 => ³√? × 34 = 374 => ³√? = 11 => ? = 1331

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