Exams › SSC CGL (Prelims) › General
What will come in place of the question mark (?) in the series: 1, 2, 6, 21, 88, ?
- 440
- 441
- 442
- 445
Correct answer: 445
Solution
The pattern is: $1\times 1 + 1 = 2$, $2\times 2 + 2 = 6$, $6\times 3 + 3 = 21$, $21\times 4 + 4 = 88$. Continuing the same pattern gives $88\times 5 + 5 = 445$.
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