| Direction: What should come in place of question mark (?) in the following number series? | |||||
| 2 | 5 | 12 | 27 | 58 | ? |
A) 122
B) 121
C) 123
D) 120
E) None of these
Correct Answer: B
Solution :
The series is\[\times 2+1,\,\,\times 2+2,\,\,\times 2+3,\]\[\times 2+4,\,\,\times 2+5,...\] i.e.\[2\times 2+1=5,\,\,5\times 2+2=12\]. \[12\times 2+3=27,\,\,27\times 2+4=58,\]\[58\times 2+5=121,...\]
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