a+b+c=80,a:b:c,则a=( ),b=( ),c_=( )a+b+c=80,a:b:c=5:7:4,则a=( ),b=( ),c_=( )
问题描述:
a+b+c=80,a:b:c,则a=( ),b=( ),c_=( )
a+b+c=80,a:b:c=5:7:4,则a=( ),b=( ),c_=( )
答
25 35 20