百度试题 结果1 题目(1) What number is 40% of 20?(2) What percent of 10 is 40?(3) 15 is 30% of what number?相关知识点: 试题来源: 解析 8; 25%; 50 (1) 40%×20=8 (2) 10÷40=25% (3) 15÷30%=50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 ...
百度试题 结果1 题目If 40% of a number is 80, what is the number? A. 200 B. 220 C. 240 D. 260 相关知识点: 试题来源: 解析 A。设这个数为 x,40%x = 80,x = 80÷40% = 200 。反馈 收藏
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 ...
To solve the problem step by step, we start with the equation given in the question.Step 1: Set up the equation We know that 15% of 45% of a number (let's call it X) equals 105.3. We can express this mathematically as: \( 0.15
百度试题 结果1 题目E2 If 30% of a number is 150, what is 25% of the same number? 相关知识点: 试题来源: 解析 125 反馈 收藏
What per cent of 52 kg is 26 kg? 02:06 What per cent of 1 litre is 200 ml 01:48 If 75% of a number is 6, then what percentage of that number s 1 ? 01:47 If 2% of x is 20, then x= 00:52 x% of y is equal to y% of x. 01:03 If ((3)/(8)"of x")%is 3/...
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
Award TWO marks for the correct answer of 160If the answer is incorrect, award ONE mark for evidence of appropriate working, eg:64÷2 = 3264 + 64 + 32 = wrong answerOR64 x 5= 320320 ÷2 = wrong answerWorking must be carried through to reach an answer for the award of ONE mark. ...