Question 63

Logical Reasoning Alphanumeric series Easy

Complete the series: 3,10,24,45,73, ____

(A) 108
(B) 121
(C) 91
(D) 69
✓ Correct Answer: Option A Verified Solution

📘 Step-by-Step Solution & Detailed Explanation:

Pattern Analysis



The pattern in this series is found by looking at the differences between consecutive numbers:



  • 10 - 3 = 7

  • 24 - 10 = 14

  • 45 - 24 = 21

  • 73 - 45 = 28



These differences (7, 14, 21, 28) form a simple arithmetic sequence, where each difference increases by 7.



  1. The next difference in the sequence must be 28 + 7 = 35.

  2. Adding this difference to the last term of the original series gives the next number: 73 + 35 = 108.





The next number in the series is 108.

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