1.Kate 走路走了1小时10分钟,骑车骑了1小时36分钟,if she had been save 2 minutes in both hiking and riding, the total speed would be 15 miles/h, 问这段路程 a) b) c)40.4 d)40.5 e) 41(not sure) 答案 D(1+8/60 +1+34/60)*15 = 40.5 miles
1.Kate 走路走了1小时10分钟,骑车骑了1小时36分钟,if she had been save 2 minutes in both hiking and riding, the total speed would be 15 miles/h, 问这段路程 a) b) c)40.4 d)40.5 e) 41(not sure) 答案 D(1+8/60 +1+34/60)*15 = 40.5 miles