题目
A bag contains green, blue and yellow glass marbles.
The ratio of green to blue glass marbles is 2 : 7.
The ratio of green to yellow glass marbles is 3 : 5.
Quantity A
Number of blue glass marbles
Quantity B
Number of yellow glass marbles
选项
A.The quantity in Column A is greater.
B.The quantity in Column B is greater.
C.The two quantities are equal.
D.The relationship cannot be determined from the information given.
解析
袋子里有三种大理石,即绿色、蓝色和黄色的。
已知两组比例:绿色与蓝色的比例,以及绿色与黄色的比例。
如果我们对比例进行转换,使绿色大理石在两组比例中的数量保持一致,就能得到三种大理石数量的新比例:
绿:蓝:黄 = 6:21:10
显然,蓝色大理石的数量比黄色大理石多。