jj的一道数学题

huang4900UID: 3879261

A survey asked 1,150 people to choose their favorite laundry detergent from brands D, E, and F. Of the people surveyed, x percent chose D as their favorite brand. If x is rounded to the nearest integer, the result is 3. Which of the following could be the number of people who chose D as their favorite brand?

想问大神
这个是四舍五入吗？
答案是 30 35 40
我算的结果没有40 啊

就是3可能在2.5-3.4之间约等的啊

Orion_ChangUID: 3582304

我昨天考试遇到过这题。。。

1150*0.0349=40.135
1150*0.0249=28.635

你看这不是有40吗

huang4900UID: 3879261

Orion_Chang 发表于 2019-5-18 17:32
我昨天考试遇到过这题。。。

1150*0.0349=40.135

谢谢

这么巧。
所以这保留了2位小数。。。

2.50%-3.49%