What is the next number in this sequence? 3, 6, 11, 18, 27, ?
Correct answer: C. 38
- A. 36
- B. 37
- C. 38
- D. 39
Explanation
The sequence is generated by adding consecutive odd numbers: 3, 5, 7, 9, 11. The first difference between 3 and 6 is 3, between 6 and 11 is 5, 11 and 18 is 7, 18 and 27 is 9. The next difference follows the pattern and should be 11. Adding 11 to 27 gives 38, making it the correct answer. Option A (36) and Option B (37) do not match the difference pattern. Option D (39) exceeds the expected next number based on the pattern.
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Logical problems present several conditions about people, objects, events or choices and require their possible arrangements to be tested. They cover constraint-based reasoning, rankings, matching, grouping, scheduling and elimination, with attention to the difference between a complete solution and a possibility that merely satisfies one condition.
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