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  1. 16, 19, 21, 30, 46, 71, 107
    1. 19
    2. 20
    3. 30
    4. 46
Correct Option: A

Series pattern
16 + 12 = 17
Should come in place of 19
17 + 22 = 21 ; 21+ 32 = 30;
30 + 42 = 46 ; 46 + 52 = 71
71 + 62 = 107
Clearly, 19 is wrong and will be replaced by 17.


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