Question

The nth term of the sequence $2,4,6,\mathrm{8....}$ is

• A. $n$
• B. $n-1$
• C. $2n$
• D. $2n-4$

Answer 1

The correct option is C $2n$

Clearly, the difference of successive terms of above sequence is constant which is 2

So given sequence is in AP with first term 2 and common difference $2$

Hence general term is, $a_n=a+(n-1)d=2+(n-1)2=2n$

Hence option 'C' is correct choice