New Enroll in RBI Grade B New Batch - Starts on May 21

    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 (7 - 28 - 224) Correct Answer Incorrect Answer
    B (5 - 20 - 160) Correct Answer Incorrect Answer
    C (8 - 32 - 256) Correct Answer Incorrect Answer
    D (9 – 36 - 278) Correct Answer Incorrect Answer

    Solution

    Logic: First number x 4 = Second number & Second number × 8 = Third number. (7 - 28 - 224)   7 × 4 = 28 & 28 x 8 = 224 (Correct) (5 - 20 - 160) 5 x 4 = 20 & 20 × 8 = 160 (Correct) (8 - 32 - 256) 8 × 4 = 32 & 32 x 8 = 256 (Correct) (9 - 36 - 278) 9 × 4 = 36 & 36 × 8 = 288 (not equal to 278) (Incorrect) Hence, the correct answer is (D).

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