题库搜索>问题求解PS-15566
建议使用官方纸质指南,查看对照完整题目
【OG20-P148-14题】
Bouquets are to be made using white tulips and red tulips, and the ratio of the number of white tulips to the number of red tulips is to be the same in each bouquet. If there are 15 white tulips and 85 red tulips available for the bouquets, what is the greatest number of bouquets that can be made using all the tulips available?
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
【答案】B
【解析】要将15个白色tulips 和85个红色tulips都用掉,且每束花中比例是固定的,那么找15和85的最大公约数公约数:
(1) 分解质因数:15=3×5,85=5×17
(2) 找最大公约数:5
所以,最多可以有5个花束。
【知识补充】
(1)最大公约数:把每个数分别分解出质因数,再把各数中的全部公有质因数提取出来连乘。即几个整数全部公有的质因数的乘积。
(2)最小公倍数:把每个数分别分解出质因数,再把各数中所含质因数的最高次方提取出来连乘。即几个整数所含质因数最高次方之间的乘积。
suzzie
为什么不是15?
680461elv
注意条件要求要用到所有available的花束!
bi胜
the ratio is to be the same我理解为1:1了
Avary回复bi胜
我也是,读了半天,表示看不懂
0
0
回复
2022-07-20 18:16:50
jasminezzhang
主要是“必须全部用掉”这个信息点比较模糊,不过看选项也能分析出来,不然的话最大可以做到15束而不是只有13了。
315984bcce
没读懂题的我傻了
牛牛会牛
Ratio is the same! Not the number! 每一束花中White:Red的比例保持不变(不一定是1:1的关系),W:15 = 3 * 5,R:85 = 5 * 17,最大公约数为5,所以一共包5束花(3W+17R)
可欣同学
题目翻译:花束是用白色郁金香和红色郁金香制作的,每束白色郁金香和红色郁金香的数量的比例是相同的。如果有15朵白郁金香和85朵红郁金香可以做成花束,那么用所有的郁金香可以做成最多多少束?
Nina Yang
主要是这句话的理解:the ratio of the number of white tulips to the number of red tulips is to be the same in each bouquet:每一束花分的白花与红花数量的比例相同。 是每一束的比例相同,不是每一束都是1:1.
EricaWu
考点:最大公约数
the ratio of the number of white tulips to the number of red tulips is to be the same in each bouquet:每一束花分的白花与红花数量的比例相同。
问:用15朵白花,85朵红花最多能绑多少束花(using all)
解:
15=5*3 ; 85=5*17
最大公约数=5
所以最多5束,每束白花3朵、红花17朵
科目:
问题求解PS
来源:
OG18新题
2m5s
平均耗时
82.3%
平均正确率
该题由网友KoqSsR4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?