Question

Which term of the $AP-1,3,7,is95$?

Answer 1

solution:

Here First term $A=-1$

common difference $d=4$

$A_n=95$

using formula

$A_n=A+(n+1)4$

$95=-1+(n+1)4$

$96=(n+1)4$

$24=(n+1)$

$n=23$