单选题
On the number line above, what is the coordinate of the point between Y and Z that is three times as far from point Z as from point Y ?
【正确答案】
D
【答案解析】One way to quickly solve this problem would be to note that the distance between the points is 16 units, so the correct answer will be 4 units 
from Point Y and 12 units 
from Point Y and 12 units