Answer
6 resistors
Work Step by Step
We know that the equivalent resistance for n resistors in parallel is given as
$\frac{1}{R_{eq}}=\frac{1}{R_1}+\frac{1}{R_2}+....... n times $
This can be written in compact form as
$\frac{1}{R_{eq}}=\frac{n}{R}$
$\implies n=\frac{R}{R_{eq}}$
We plug in the known values to obtain:
$ n=\frac{65}{11}$
$ n=5.909$
$\implies n=6$
