Question:
Which is the next number in the series given below?
2, 4, 10, 30, 105, 420, ?
Which is the next number in the series given below?
2, 4, 10, 30, 105, 420, ?
2, 4, 10, 30, 105, 420, ?
Updated On: Mar 5, 2025
- 1260
- 1470
- 1890
- 1680
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The Correct Option is C
Solution and Explanation
Step 1: Examining the Pattern in the Series
- 2 × 2 = 4
- 4 × 2.5 = 10
- 10 × 3 = 30
- 30 × 3.5 = 105
- 105 × 4 = 420
Step 2: Analyzing the Pattern
Each number is multiplied by an incrementally increasing factor: 2, 2.5, 3, 3.5, 4.
Step 3: Conclusion
Therefore, the next number should be:
- 420 × 4.5 = 1890
Final Answer: The correct answer is (c) 1890
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