in the following number series one of the numbers is wrong find it out | Examsbook

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Q: In the following number series, one of the numbers is wrong. Find it out? 77, 79, 76, 81, 75, 85

1
79
2
81
3
75
4
85

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Answer : 3. "75"
Explanation :
Answer: C) 75 Explanation: Here in the given series, it follows a pattern that 77 + 2 = 79 79 - 3 = 76 76 + 5 = 81 81 - 7 = 74 74 + 11 = 85 Consecutive adding and subtracting of prime numbers. So the wrong number in the given series is 75.

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