Question
Find the wrong number in the given number series. 28, 40, 63, 98, 147, 224
Solution
ATQ, The following series follows the pattern as: Number + 7 × consecutive prime numbers starting with ‘2’. 28 + (7 × 2) = 42 42 + (7 × 3) = 63 63 + (7 × 5) = 98 98 + (7 × 7) = 147 147 + (7 × 11) = 224 Therefore, 42 should come in place of 40.
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