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Question

3, 6, 18, 72, 360, ?

This question was previously asked in
SSC CGL 2025 Tier 1 Question Paper (25-Sep-2025) (Shift 3)
The correct answer is
2160

The question presents a number sequence and asks for the next term.

Sequence Pattern Recognition

We need to identify the rule governing the sequence: 3, 6, 18, 72, 360, ?

Let's examine the relationship between consecutive terms:

  • $6 \div 3 = 2$
  • $18 \div 6 = 3$
  • $72 \div 18 = 4$
  • $360 \div 72 = 5$

The pattern is that each term is obtained by multiplying the previous term by an integer, starting from 2 and increasing by 1 for each subsequent step.

Calculating the Next Term

Following the identified pattern, the next operation is to multiply the last term (360) by the next integer in the sequence, which is 6.

  • The sequence of multipliers is: 2, 3, 4, 5, ...
  • The next multiplier is 6.
  • Calculation: $360 \times 6$

Performing the multiplication:

$360 \times 6 = 2160$

Therefore, the next number in the sequence is 2160.

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