Question
1, 8, 22, ?, 71, 106,
148 What should come in place of question mark (?) in the following number series?Solution
1 + 7 = 8 8 + 14 = 22 22 + 21 = 43 43 + 28 = 71 71 + 35 = 106 106 + 42 = 148
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