Direction: In each of the following questions, a number series is given in which one number is wrong. You have to find out that number and have to follow the new series which will be started by that number. By following this, which will be the second number of the new series?
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1, 2, 8, 21, 88, 445
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- 24.5
- 25
- 25.5
- 25
- None of these
Correct Option: E
As per the details in the question the series is in the form of
First term = 1
Second term = ( First term × Variable ) + Variable
⇒ Second term = ( 1 × 1 ) + 1 = 2
Third term = ( First term × Variable ) + Variable
⇒ Third term = ( 2 × 2 ) + 2 = 8 , So 8 is wrong. we get 6 as Third term.
Similarly , we can find the all terms also.
Fourth term = ( 6 × 3 ) + 3 = 21
Fifth term = ( 21 × 4 ) + 4 = 88
Sixth term = ( 88 × 5 ) + 5 = 445
