If a is 3 and b is 2, the ratio of 2a to b would be 6:2 or 3:1. But if we used a=2 and b=3 instead (and nothing tells us that we can’t), the answer to the question stem becomes 4:3. When we can get different answers, we can tell the statement is not suf...
正确答案:AA 解析:Statement (1) says that a/b=2. We are looking for the ratio 2a/b. If you substitute 2 for a/b in that ratio, you get 2 times 2, which equals 4. Statement (1) is sufficient. Cross off B, C, and E. How about statement (2)? Remember, you have to forget ...
图示为一简易冲床的拟设计方案。设计者思路是：动力由齿轮1输入，使轴A连续回转；而固定在轴A上的凸轮2和杠杆3组成的凸轮机构使冲头4上下往复运动，以达到冲压的目的。试绘出其机构运动简图，计算机构的自由度，并分析其运动是否确定，如其运动不确定，试提出修改措施。
(1) a/b=2 (2) a+b=5查看答案更多“What is the ratio of 2a to b? (1) a/b=2 (2) a+b=5”相关的问题 第1题 What is the current ratio for Year 2018? A.2.21 B.1.03 C.3.26 D.3 点击查看答案 第2题 What is the Times Interest Earned Ratio for Year 2018? A.4.9 B.8.5 ...
百度试题 结果1 题目8.Beng Huat painted of a stick. What is the ratio of the unpainted2portion of the stick to the painted portion of the stick?(1)(1)1:2(2)1:3(3)2:1(4)2:3 相关知识点: 试题来源: 解析 (1) 反馈 收藏
百度试题 结果1 题目5.o中D1What is the ratio of the number of triangles to the number of squares to the number of crosses?3:6:5[1 mark] 相关知识点: 试题来源: 解析 3:6:5triangles: squares : crosses3 : 6 : 5 反馈 收藏
(1)The average height of the students in class X is 120 centimeters. (2)The average height of the students in class X and class Y combined is 126 centimeters. 选项: A、 Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient. ...
【GMAT DS-Magoosh:第21-40题模考】GMAT考满分为GMAT考生提供GMAT DS-Magoosh:第21-40题模考练习。What is the ratio of x to y?(1) The ratio of 0.2x to 3y is 1 to 6.(2) y is 40 le
用极值法思考，假设B班的人数和A班相等，那么B的平均身高是132，ratio是120:132，假设B班只有一个人，...
百度试题 结果1 题目 17. What is the ratio (比) of the area of the shaded square to the area of the large square? ( )(A) 1/6 (B) 1/7 ©) 1/8 ① 1/(16) 相关知识点: 试题来源: 解析 C 反馈 收藏