Question
0Â Â Â Â Â Â 2 Â Â Â Â Â Â Â 6Â Â Â Â Â Â 12 Â Â
    20       ? What will come in the place of question mark (?) in the following number series:Solution
12 - 1 = 0 22 - 2 = 2 32 - 3 = 6 42 - 4 = 12 52 - 5 = 20 62 - 6 = 30
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Study the following information carefully and answer the given questions.
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