Question

Find the missing number in the series $2,10,26,...,242$

• A. $80$
• B. $81$
• C. $82$
• D. $84$

Answer 1

The correct option is C $82$

$2,10,26,..............242$
${\left(3\right)}^1+{(-1)}^1=2$
${\left(3\right)}^2+{(-1)}^2=10$
${\left(3\right)}^3+{(-1)}^3=26$
${\left(3\right)}^4+{(-1)}^4=82$
${\left(3\right)}^5+{(-1)}^5=242$