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    Question

    4 , 12, 20 , 28 , 36 ,

    ? What will come in place of question mark (?) in the following series 
    A 40 Correct Answer Incorrect Answer
    B 42 Correct Answer Incorrect Answer
    C 44 Correct Answer Incorrect Answer
    D 48 Correct Answer Incorrect Answer

    Solution

    Multiplication of odd numbers 4× 1=4, 4×3= 12 , 4 ×5= 20 , 4 ×7=28 , 4 ×9 =36 , 4 ×11 =44

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