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    Question

    20      60       150       300      450 

        ? What will come in place of the question mark (?) in the following series?
    A 480 Correct Answer Incorrect Answer
    B 450 Correct Answer Incorrect Answer
    C 675 Correct Answer Incorrect Answer
    D 560 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    20 x 3 = 60 60 x 2.5 = 150 150 x 2 = 300 300 x 1.5 = 450 450 x 1 = 450

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