Question
7, 22, 68, 207, 620,
1880 Find the wrong number in the given number series.Solution
ATQ, The series follows the pattern: 7 × 3 + 1 = 22, 22 × 3 +2=68, 68× 3 +3 =207, 207 ×3 +4 = 625, 625× 3 + 5 = 1880 Therefore, 625 should be in place of 620.
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