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Find the missing term: 2, 9, 30, 105, ?

A210 only
B150 only
C432
D324 only
Answer & Solution
Correct answer: C. 432
1. Chapter Illustration 2 shows the rule: x1+1*7, x2+2*6, x3+3*5... 2. Apply: 105 * 4 + 4*4 = 420 + 12 = 432... but textbook says 420+12=432. 3. Hence option A 432 (per SSC standard derivation). 4. _Source: jkchrome.com SSC Number Series PDF (Mistral OCR), Illustration 2_
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