number series po 4 on 19 oct find wrong one

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Maths Series (1) 10, 18, 34, 66, 130 (2) 20, 26.5, 56.5, 175, 705.5, 3533, 21203. (3) 1,10,37,118,461,1090,3277 (4) 32,36,52,88,182,252   [5]9 ,22 17 23 25

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