Question:medium

DIRECTION for the question: In the following question, a series is given with term/s missing. Choose the correct alternative to replace the question mark in the given series.
1, 3, 4, 8, 15, 27, ?

Show Hint

In number series: • When differences don't show a clear pattern, check for additive sequences, where a term is the sum of two or more of its preceding terms.
Updated On: Jun 15, 2026
  • 37
  • 44
  • 50
  • 55
  • 95
Show Solution

The Correct Option is C

Solution and Explanation

Step 1: Understanding the Concept:
Check if each term is a sum of the preceding terms (similar to the Fibonacci sequence).
Step 2: Detailed Explanation:
1 + 3 + 4 = 8
3 + 4 + 8 = 15
4 + 8 + 15 = 27
Step 3: Calculation:
Following the logic that each term is the sum of the three previous terms: Next term = $8 + 15 + 27 = 50$.
Step 4: Final Answer:
The missing term is 50. Thus, the correct option is (c).
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