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    Question

    Select the odd group of numbers. (NOTE: Operations

    should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g.,43 - Operations on 43 such as adding /subtracting /multiplying etc. to 43 can be performed. Breaking down 43 into 4 and 3 and then performing mathematical operations on 4 and 3 is not allowed)
    A (3 - 30 - 600) Correct Answer Incorrect Answer
    B (5- 50 - 1500) Correct Answer Incorrect Answer
    C (8 - 80 - 1600) Correct Answer Incorrect Answer
    D (9 - 90 - 1800) Correct Answer Incorrect Answer

    Solution

    The pattern followed here is:   Logic: First number x 10 = Second number & Second number × 20 = Third number.   (3 - 30 - 600) → 3 × 10 = 30 & 30 x 20 = 600 (Correct) (5 - 50 - 2200) → 5 × 10 = 50 & 50 × 20 = 1000 (not equal to 1500) (Incorrect) (8 - 80 - 1600) →8 × 10 = 80 & 80 x 20 = 1600 (Correct) (9 - 90 - 1800) → 9 × 10 = 90 & 90 × 20 = 1800 (Correct)   Hence, the correct answer is (B).

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