जॉइन Examsbookउत्तर : 3. "75"
In the following number series, one of the numbers is wrong. Find it out?
77, 79, 76, 81, 75, 855
प्र: In the following number series, one of the numbers is wrong. Find it out? 77, 79, 76, 81, 75, 85
- 179false
- 281false
- 375true
- 485false
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उत्तर : 3. "75"
व्याख्या :
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.