40%的人hold round trip tickets 同时也带了自己的car. 20%的人who hold round trip 没带car.问hold round trip tickets的人有百分之几
答案是否为60%
第二题:the sides of a square region,measured to the nearest centimeters are 6 centimeters long,the least possible value of the actual area of the square region is:
a.36.00
b.35.00
c.33.75
d.30.25
e.25.00
能否告知解题的过程?谢谢 |