
$\left ( {1} \right )$
$\left ( {1-40\% } \right )x=360$
$0.6x=360$
$x=360\div 0.6$
$x=600$
$\left ( {2} \right )$
$x-85\% x=165$
$0.15x=165$
$x=165\div 0.15$
$x=1100$

$\left ( {1} \right )$
$\left ( {1-40\% } \right )x=360$
$0.6x=360$
$x=360\div 0.6$
$x=600$
$\left ( {2} \right )$
$x-85\% x=165$
$0.15x=165$
$x=165\div 0.15$
$x=1100$