1 In may, A(一个人) sold 15 used cars. For these 15 cars, the range of the selling price is $15000-$4500. In June,A sold 10 used cars , the range of the price is $16500-$6100. What was the range of the selling prices of the 25 used cars?
A $15600
B $15750
C $16820
D $18100
E $19200
答案是D,但是range不是值域么,怎么是一个确定的数啊??
2if 500 is the multiple of 100 that is closest to X and 400 is the multiple of 100 that is closest to Y. Which multiple of 100 is closest to X+Y?
1 x<500
2 y<400
完全不知道这个题是什么意思...
3Is the three-digit number N<550?
1 the product of the digits is 30
2 the sum of the digits is 10
答案是C,但是我觉得既然每一位的乘积是30,那只可能是2 3 5啊,最大也就只可能是532,那就应该选A呀..
还有点心理上的问题,我还有7天就考试了,最近做题的正确率都还比较高,今天prep模了一次(第二套,以前没有做过)750,但是我总觉得自己的实力没有这么高啊,因为准备的前期做了很多的题,所以今天的prep里面好多题都是做过的,特别是CR,基本都是做过的,而且阅读也遇到结构比较明显的,所以担心考试的时候都没有见过的题一下就完了,不知道XDJM们考前有没有这种感觉哦?
1 In may, A(一个人) sold 15 used cars. For these 15 cars, the range of the selling price is $15000-$4500. In June,A sold 10 used cars , the range of the price is $16500-$6100. What was the range of the selling prices of the 25 used cars?
A $15600
B $15750
C $16820
D $18100
E $19200
答案是D,但是range不是值域么,怎么是一个确定的数啊??
2if 500 is the multiple of 100 that is closest to X and 400 is the multiple of 100 that is closest to Y. Which multiple of 100 is closest to X+Y?
1 x<500
2 y<400
完全不知道这个题是什么意思...
3Is the three-digit number N<550?
1 the product of the digits is 30
2 the sum of the digits is 10
答案是C,但是我觉得既然每一位的乘积是30,那只可能是2 3 5啊,最大也就只可能是532,那就应该选A呀..
还有点心理上的问题,我还有7天就考试了,最近做题的正确率都还比较高,今天prep模了一次(第二套,以前没有做过)750,但是我总觉得自己的实力没有这么高啊,因为准备的前期做了很多的题,所以今天的prep里面好多题都是做过的,特别是CR,基本都是做过的,而且阅读也遇到结构比较明显的,所以担心考试的时候都没有见过的题一下就完了,不知道XDJM们考前有没有这种感觉哦?
前两道我也不明白什么意思。
第三题,product是30,可能是1×5×6,2×3×5
不是题有问题,就是我们有问题
完全读不懂,索性就不看了
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