A certain taxi company charges $3.10 for the first~$\frac{1}{5}$~of a mile plus $0.40 for each additional ~$\frac{1}{5}$~ of a mile. What would this company charge for a taxi ride that was 8 miles long?
$15.60
$16.00
$17.50
$18.70
$19.10
8mile=40*(1/5)mile 所以按照题目表述,第一个1/5收费3.10,剩下每增加一个1/5收费0.40,总费用应该为:
3.10+0.40*39=18.70。正确选项为D。
是 1/5 of【a】mile 不是,1/5 of the total mile
论考场检查的重要性
哇