Question
47, 72, 122, ?, 297,
422 Find the missing number in the following number series:Solution
47 + (25 × 1) = 72 72 + (25 × 2) = 122 122 + (25 × 3) = 197 197 + (25 × 4) = 297 297 + (25 × 5) = 422
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