Question

Replace the $?$ with the appropriate number.

$2,9,28,?,126,217$

• A. $36$
• B. $42$
• C. $56$
• D. $65$

Answer 1

The correct option is D $65$

The term exhibits the pattern $n^3+1$, $n$ taking values $1,2,3,...$

The fourth term will be $4^3+1=65$