Question
65, 90, 140, ?, 315,
440 Find the missing number in the following number series:Solution
65 + (25 × 1) = 90 90 + (25 × 2) = 140 140 + (25 × 3) = 215 215 + (25 × 4) = 315 315 + (25 × 5) = 440
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