QS $18-21($Algo$)$ Sales mix and break$-$even LO P$3$

US$-$Mobile manufactures and sells two products, tablet computers $(65\%$ of sales$)$ and smartphones $(35\%$ of sales$).$ Fixed costs are

$$300,000,$ and the weighted$-$average contribution margin per unit is $$60.$ How many units of each product are sold at the break$-$even

point?