Question

    What should come in place of question mark ‘?’ in the following number series?

    18      36        36         24 

          48         ?
    A 15.5 Correct Answer Incorrect Answer
    B 20 Correct Answer Incorrect Answer
    C 19.2 Correct Answer Incorrect Answer
    D 16 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    18 ÷ 0.5 = 36 36 × 1 = 36 36 ÷ 1.5 = 24 24 × 2 = 48 48 ÷ 2.5 =  19.2

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