Răspuns:
ms1 : ms2 = 5:4
4ms1 = 5ms2
ms1 = 5ms2/4
md1:md2=3:8
md1 = 3md2
c2 = md2 × 100/ms2
c2 = 100md2/ms2
c1 = md1 × 100/ms1
c1 = 300md2/5ms2:4
c1 = 300md2×4/5ms2
c1 = 240md2/ms2
c1/c2 =( 240md2/ms2):(100md2/ms2)
c1/c2 = (240md2/ms2)×(ms2/100md2)
c1/c2 = 240/100 = 2.4
