Question 1160305


let cars be {{{x}}} and trucks {{{y}}}

we know that 
{{{x+y=40+24}}}
{{{x+y=64}}}

we also know that

{{{(x/100)64=40}}}->{{{x=4000/64}}}->{{{x=62.5}}}%

{{{(y/100)64=24}}}->{{{y=2400/64}}}->{{{y=37.5}}}%


so, {{{62.5}}}% percent of the vehicles in the parking lot were cars