题库搜索>问题求解PS-12206
A circular mat with diameter 20 inches is placed on a square tabletop, each of whose sides is 24 inches long. Which of the following is closest to the fraction of the tabletop covered by the mat?
分析A选项
分析B选项
分析C选项
分析D选项
分析E选项
我有更好的解析 
暂无雷哥网文字解析
圆的面积是Pi*10*10,正方形的面积是24*24, 结果为（Pi*10*10）/(24*24)=0.545, 最接近1/2
追梦的猪猪
不用计算的方法： (π * 10²)/(24*24)≈314/25²≈314/625约等于1/2 但是因为刚才分母用了更大的数字25，而且分子舍去了千分位以后的数字，所以整体数字肯定要比 1/2 大一丢丢。 看选项前两个排除，1/2 后面直接 3/4 了，比 1/2 大太多。选 1/2
3
0
回复
2021-11-04 15:04:00
科目：
问题求解PS
来源：
GWD
题目信息2m37s
平均耗时
76.5%
平均正确率
该题由网友axl2uil提供
点击上传问题求解PS -17858
A merchant purchased a jacket for $60 and then determined a selling price that equaled the purchase price of the jacket plus a markup that was 25 percent of the selling price. During a sale, the merchant discounted the selling price by 20 percent and sold the jacket. What was the merchant's gros...
问题求解PS -17857
Store N gives a 50 percent discount on the list price of all its items and Store W gives a 60 percent discount on the list price of all its items. If the list price of the same item is 20 percent higher in Store W, what percent (more or less) of the selling price in Store N is the selling price of t...
问题求解PS -17854
A store bought 5 dozen lamps at $30 per dozen and sold them all at $15 per lamp. The profit on each lamp was what percent of its selling price?
问题求解PS -17849
The table above shows the percent of change from the previous month in Company X's sales for February through June of last year. A positive percent indicates that Company X's sales for that month increased from the sales for the previous month, and a negative percent indicates that Company X...
问题求解PS -17845
The annual stockholders' report for Corporation X stated that profits were up 10 percent over the previous year, although profits as a percent of sales were down 10 percent. Total sales for that year were approximately what percent of sales for the previous year?
问题求解PS -17858
A merchant purchased a jacket for $60 and then determined a selling price that equaled the purchase price of the jacket plus a markup that was 25 percent of the selling price. During a sale, the merchant discounted the selling price by 20 percent and sold the jacket. What was the merchant's gros...
问题求解PS -17857
Store N gives a 50 percent discount on the list price of all its items and Store W gives a 60 percent discount on the list price of all its items. If the list price of the same item is 20 percent higher in Store W, what percent (more or less) of the selling price in Store N is the selling price of t...
问题求解PS -17854
A store bought 5 dozen lamps at $30 per dozen and sold them all at $15 per lamp. The profit on each lamp was what percent of its selling price?
问题求解PS -17849
The table above shows the percent of change from the previous month in Company X's sales for February through June of last year. A positive percent indicates that Company X's sales for that month increased from the sales for the previous month, and a negative percent indicates that Company X...
问题求解PS -17845
The annual stockholders' report for Corporation X stated that profits were up 10 percent over the previous year, although profits as a percent of sales were down 10 percent. Total sales for that year were approximately what percent of sales for the previous year?
分享
周末、晚班滚动开班 
24+35+35+6课时 
