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mediumMCQStaff Selection Commission2026General Intelligence and Reasoning
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A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.
12,24,72,288,?

  1. A
    1440
  2. B
    3250
  3. C
    3025
  4. D
    2025

Solution & Step-by-step Explanation

Let's look at the multiplication pattern between consecutive terms of the series:
12×2=24

24×3=72

72×4=288

Following this increasing multiplier pattern (×2,×3,×4,…), the next term must be multiplied by 5:

288×5=1440
Thus, the missing number is 1440.

Practice this question

Try it yourself before checking the explanation above.

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.
12,24,72,288,?
A
1440
B
3250
C
3025
D
2025

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