QUESTION $18$

If a $10\%$ increase in sales causes EPS to increase fr$$m $$1\mathrm{.}00$ to $$1\mathrm{.}50($DTL$),$ and if the firm uses no debt, then what is its degree of operating leverage $($DOL$)?$

$5\mathrm{.}0$

$4\mathrm{.}7.$

$4\mathrm{.}2.$