Question 75

Find the next number in this row.
14, 31, 59, 121, 239,?

Solution

We can observe below pattern in given series,

14, $$ 14 \times 2 + 3 $$, $$ 31 \times 2 - 3 $$, $$ 59 \times 2 + 3 $$, $$ 121 \times 2 - 3 $$, ...

Next number would be $$ 239 \times 2 + 3 $$ = 481

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