Question

12,35,81,173,357,__.
Step by step explain.
I will mark as brallinst.
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Answer 1

Answer:

421

Step-by-step explanation:

12+23=35,35+46=81,

Answer 2

Answer:

$12,35,81,173,357,_$_ is a series problem.

To solve this series first the common pattern in the series.

In this series there is a common pattern followed to find the next number.

To find the pattern followed  subtract the consecutive numbers.

After subtracting second number from first i.e. $35-12=23$.

For next numbers $81-35=46$.

Likely $173-81=92$. and $357-173=184$.

The pattern followed is difference of first two number multiply by $2$ and add to the next number. $12+23=35\\ 35+(23X2=46) =35+46=81\\ 81+(46X2=92)=81+92=173\\ 173+(92X2=184)=173+184=357\\ 357+(184X2=368)=357+368=725$

The series is $12,35,81,173,357,725$