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 ...
(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 ...
x:y=2:3 and y:z=4:5?(2) What is the ratio of x to z if x:y=2:5 and y:z=9:2?相关知识点: 试题来源: 解析 8:15; 9:5 (1) x:y=8:12 and y:z=12:15 x:z=8:15 (2) x:y=18:45 and y:z=45:10 x:z=9:5...
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
【题目】What is the ratio of the number of seconds in 45 minutes to the number of seconds in one hour().A.1:2 B.1:4C.3:4 D.4:3 相关知识点: 试题来源: 解析 【解析】C 结果一 题目 What is the ratio of the number of seconds in 45 minutes to the number of seconds in one ...
百度试题 结果1 题目 19.What is the ratio of the number of apples to the total number of fruits?Express your answer in the simplest form.3:8Answer: 相关知识点: 试题来源: 解析 3:8 反馈 收藏
The ratio of a to b is 3:7, and the ratio of b to c is 5:8 .What is the ratio of c to
百度试题 结果1 题目What is the ratio of the diameter to the circumference of a circle?A)1/(2π) B)1/πt C)πD)2元E)2 相关知识点: 试题来源: 解析 B 反馈 收藏
Two complementary angles are in the ratio of 2:3. What is the measure of the smaller angle? A. 36 degrees B. 54 degrees C. 72 degrees D. 108 degrees 相关知识点: 试题来源: 解析 A。互补角和为 90 度,设两角分别为 2x 和 3x,可得 2x + 3x = 90,解得 x = 18,所以较小角为 ...