Question:

Identify the missing number in the series:
3 7 16 35 ?

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In number series questions, focus on the differences between consecutive numbers and check if there is a consistent pattern of increase or decrease.
Updated On: Nov 24, 2025
  • 44
  • 55
  • 64
  • 74
  • 84
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The Correct Option is C

Solution and Explanation

Step 1: Identify the pattern.
Look at the differences between consecutive numbers:
- \( 7 - 3 = 4 \)
- \( 16 - 7 = 9 \)
- \( 35 - 16 = 19 \)
The differences between numbers are increasing: \( 4, 9, 19, \dots \), which are increasing by 5, and by continuing the pattern, the next difference will be \( 19 + 10 = 29 \). Thus, the missing number is \( 35 + 29 = 64 \).
Step 2: Conclusion.
The correct answer is (C) 64, as it follows the pattern of increasing differences.
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