Question
Find the wrong number in the given number series.
420, 369, 318, 277, 238, 225Solution
ATQ,
420 – 51 = 369
369 – 51 = 318
318 – 41 = 277
277 – 31 = 246
246 – 21 = 225
Therefore, 246 should be the correct value instead of 238.
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