If 30% of a number is 15, what is the number? A. 45 B. 50 C. 55 D. 60 相关知识点: 试题来源: 解析 B。本题考查百分数的计算。已知 30%的某个数是 15,那么这个数就是 15÷30% = 50,所以选择 B 选项。A 选项 45 不是 15 除以 30%的结果。C 选项 55 错误。D 选项 60 也...
(5).75% of a number is57, what is this number?相关知识点: 试题来源: 解析 最终答案是76。 题目要求计算一个数是多少,已知这个数的75%是57。 根据题意,可以用57除以75%得到这个数。 **计算过程:** 57 ÷ 75% = 57 ÷ 0.75 = 76反馈 收藏 ...
A. 20 B. 25 C. 30 D. 35 相关知识点: 试题来源: 解析 B。首先,设这个数为 x,30%x = 15,解得 x = 50。那么 50%×50 = 25,所以答案是 B 选项。A 选项 20 不是 50 的 50%;C 选项 30 不是 50 的 50%;D 选项 35 也不是 50 的 50%。反馈 收藏 ...
To solve the problem step by step, we will follow these instructions:Step 1: Define the variable Let the unknown number be \( x \).Step 2: Set up the equation According to the problem, 16% of \( x \) is
一个数的20%等于这个数的1/5,令n为这个数,1/5n=12,两边同时乘以5,得到n=60.n的30%等于3/(10)n=3/(10)*60=3*6=18,故B正确.故选B.20% of a number is equal to 1/5 of that number. Let n= the number 1/5n=12 Multiply both sides by 5n=6030% of n is equal to 3/(10)n=3/...
百度试题 结果1 题目If 25% of a number is 5, what is the number? A. 10 B. 15 C. 20 D. 25 相关知识点: 试题来源: 解析 C。设这个数为 x,25%x = 5,x = 5÷25% = 20。易错点是计算时要注意除法运算。反馈 收藏
百度试题 结果1 题目60% of a number is 30. What's the number? A. 50 B. 60 C. 40 D. 70 相关知识点: 试题来源: 解析 A。设这个数为 x,则 60%x = 30,解得 x = 50。反馈 收藏
35 is 35% of 100. To find our answer, we start by dividing the given number by the number in the percentage. This gives us the value of 1% of the... Learn more about this topic: Percentage | Formula & Calculation from Chapter 16/ Lesson 12 ...
If 25% of a number is 6, what is the number which is 50% more than the initial number? View Solution Exams IIT JEE NEET UP Board Bihar Board CBSE Free Textbook Solutions KC Sinha Solutions for Maths Cengage Solutions for Maths DC Pandey Solutions for Physics ...
7.5% of what number is 12?相关知识点: 试题来源: 解析 160 160的7.5%等于12 分析总结。 扫码下载作业帮拍照答疑一拍即得答案解析查看更多优质解析举报160160的7结果一 题目 7.5% of what number is 12? 答案 160160的7.5%等于12相关推荐 17.5% of what number is 12?