Question
Find the wrong number in the given number series.
90, 85, 95, 80, 100, 75, 105Solution
ATQ,
Pattern: –5, +10, –15, +20, –25, +30
Check:
90 – 5 = 85
85 + 10 = 95
95 – 15 = 80
80 + 20 = 100
100 – 25 = 75
75 + 30 = 105
Therefore, Series is correct
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