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    Question

    Calculate the value of this expression: (180 - 90

    ÷ 6 of 2) ÷ 5 + 3 of 16 ÷ 4 - 12 of 4 ÷ 8
    A 75.5 Correct Answer Incorrect Answer
    B 53.3 Correct Answer Incorrect Answer
    C 22.5 Correct Answer Incorrect Answer
    D 40.5 Correct Answer Incorrect Answer

    Solution

    ATQ,

    (180 - 90 ÷ 6 of 2) ÷ 5 + 3 of 16 ÷ 4 - 12 of 4 ÷ 8

    = (180 - 90 ÷ 12) ÷ 5 + 48 ÷ 4 - 48 ÷ 8

    = (180 - 7.5) ÷ 5 + 12 - 6

    = 172.5 ÷ 5 + 6

    = 34.5 + 6

    = 40.5

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