Question

第五题求解快要过程快

Answer 1

D

设容积均为V,

A中糖：[1/(1+6)]*V=V/7;

B中糖:[4/(4+9)]*V=4V/13;

混合后糖与糖水的比=糖总量：糖水总量=(V/7+4V/13):(2V)=41/182;