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    Question

    Which of the following expressions are equal?'A' =

    81 ÷ 9 × 6 - 27'B' = (3/2) × (40/3) + 30 ÷ 6'C' = (40 + 12 - 22) ÷ 6 × 5'D' = [(8/12) × 36 - 6] ÷ 2 + 4
    A A and B Correct Answer Incorrect Answer
    B A and C Correct Answer Incorrect Answer
    C B and C Correct Answer Incorrect Answer
    D C and A Correct Answer Incorrect Answer

    Solution

    ATQ,

    'A' = 81 ÷ 9 × 6 - 27

    Or, 'A' = 9 × 6 - 27 = 54 - 27 = 27

    'B' = (3/2) × (40/3) + 30 ÷ 6

    Or, 'B' = 20 + 5 = 25

    'C' = (40 + 12 - 22) ÷ 6 × 5

    Or, 'C' = 30 ÷ 6 × 5 = 5 × 5 = 25

    'D' = [(8/12) × 36 - 6] ÷ 2 + 4

    Or, 'D' = (24 - 6) ÷ 2 + 4

    Or, 'D' = 18 ÷ 2 + 4 = 9 + 4 = 13

    Therefore, 'B' and 'C' are same.

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