alleryComplete the number series: 32, 64, 256, 1536, ?, 122880, 1474560
A12286
B12288
C12270
D12285
Answer & Solution
Correct answer: B. 12288
1. Each term multiplies by an increasing even number: ×2, ×4, ×6, ×8, ...
2. So the missing term = 1536 × 8 = 12288.
3. Check: 12288 × 10 = 122880 and 122880 × 12 = 1474560.
_Source: RRB Group D CEN-02/2018 PYQ, Q.24._
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