Add one more element to the given number series: 71, 76, 69, 74, 67, 72:
A. 77
B. 65
C. 80
D. 76

Understanding the Pattern in the Number Series

Let’s analyze the given sequence:

71, 76, 69, 74, 67, 72, ?

We’ll break it into two interleaved sub-series:

Odd positions: 71, 69, 67

Each step: -2

• 71 → 69 → 67 → 65

Even positions: 76, 74, 72

Each step: -2

• 76 → 74 → 72 → 70 (if continued, but not needed now)

Since the last number (72) is at even position, the next number will be from the odd-position pattern:

67 → **65**

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✅ Correct Answer: B. 65

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Key Takeaways

• Break complex sequences into patterns.
• Look for alternating increases or decreases.
• This question teaches logical sequencing—a common topic in competitive exams.