某厂有职工2240人,共分四个车间,其中车间A、B、C、D的人数比是1:2:2:3,D车间男女职工人数比是2:3,D车间有女职工 人.
= %= : = (小数)
: =37.5%== ÷ = (填小数)
=0.75== : = %
= : =75%=3÷ = .(填小数)
10÷ = :75== %= (填小数).