Xiao Zhang: 60×2/ 10= 12 yuan.
Xiao Wang: 60×5/ 10=30 yuan.
Gao Xiao: 60×3/ 10= 18 yuan.
2) Speed sum: 360 ÷ 9/4 = 160km3+5 = 8.
B speed: 160×5/8= 100 km.
3) 9/8× 1/6 = 3/ 16kg