ADVANCED PURCHASE DISCOUNTS FOR AIRLINE TRAVEL
Days Prior to Departure Pecentage Discount
0-6 days 0%
7-13 days 10%
14-29 days 25%
30 days or more 40%
20. The table above shows the discount structure for advanced purchase
of tickets at a particular airline. A passenger bought a ticket at
this airline for $1,050. The ticket agent informed her that, had she
purchaced the ticket one day later, she would have paid $210 more.
How many days before her departure did she purchase her ticket?
(A) 6 days
(B) 7 days
(C) 13 days
(D) 14 days
(E) 29 days
Ans: (D)
英文有看懂~但還是不會做...
不知道能不能幫忙解一下呢?謝謝囉~~
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