The following linear programming problem has been written to plan the production of two products

$x_1=$ Number of product $1$ produced in each batch

$x_2=$ Number of product $2$ produced in each batch

MAX: $200x_1+150x_2$

Subject $to$: $2x_1+5x_{2}165$

$,3x_1+7x_{2}135$

$,x_1,x_{2}0$

How many units of resource $1($the first constraint$)$ are used if the company produces $7$ units of prod $1$ and $10$ units of product $2?$

$35$

$64$

$91$

$120$