Liu Ming wants to buy some school things. According to the list, if he buys twelve exercise books, four knives, five pens, double rulers and a pencil-box, he will pay .
Thing
|
Knife
|
Pen
|
Exercise book
|
Ruler
|
Pencil-box
|
Price
|
¥2.50
|
¥15.00
|
¥3.00
|
¥1.50
|
¥16.00
|
Good news : If you spends more than one hundred yuan in buying pens, you will enjoy a 40% off for the whole list.
|
A. 140 yuan B. 84 yuan C. 56 yuan