Choose the correct alternative that will continue the same pattern and replace the question mark (?) in the series 7, 27, 107, 427, ?
Solution
First term given in the pattern is $$7$$.
Second term given is $$27$$ which is equal to "$$7(4)-1$$" .
The next term given is $$107$$, which is equal to "$$27(4)-1$$".
The next term given is $$427$$, which is equal to "$$107(4)-1$$".
Therefore the next term will be$$=427\left(4\right)-1=1707$$ .
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