题库搜索>数据充分DS-15043
Does q have a distinct value?
(1) (2q−3)2=q2
(2) √I2−q=3
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
Hanluer
条件1:两个解 not sure,不充分
条件2:可以得到方程q2-24q+135=0 q=15 or 9; 但是12-q>0, q<12, 所以q=9。 Sure, 充分!
374342uvtm
distince value是什么意思?是求出不同的值吗?
239694zh
所以这题时答案错了吗?应该选a?
smile720
条件1就是能求出2个值,但是问题问的是可不可以求出值,条件1可以的,所以应该也是充分的
Jessica7
我也觉得应该是D...GMAT里面只要能回答问题就可以的了
268948hjpc回复Jessica7
豁然开朗,差点忘了这条守则。因为2)是唯一值,也能选。是D。
0
0
回复
2022-04-12 07:41:31
gmat800wyt
同问为什么不是D
Holmes
只要能回答 q是不是唯一的就行了啊 第一个式子算出来两个q, 说明q不是唯一的, 也是回答了问题为什么不对
過閔兒
為什麼不D呢?
科目:
数据充分DS
来源:
Manhattan
1m9s
平均耗时
43.3%
平均正确率
该题由网友P5YwM提供
点击上传数据充分DS -18358
Did the population of Town C increase by at least 100 percent from the year 2000 to the year 2010 ?(1)The population of Town C in 2000 was 2/3 of the population in 2005.(2)The population of Town C increase by a greater number of people from 2005 to 2010 than it did from 2000 to 2005
数据充分DS -18269
At a certain clothing store, customers who buy 2 shirts pay the regular price for the first shirt and a discounted price for the second shirt. The store makes the same profit from the sale of 2 shirts that it makes from the sale of 1 shirt at the regular price. For a customer who buys 2 shirts, what...
数据充分DS -18267
What is the volume of the right circular cylinder X ?(1) The height of X is 20.(2) The base of X has area 25π.
数据充分DS -18265
What is the value of z in the figure above?(1) x = 50(2) y = 35
数据充分DS -18264
If all of the six faces of a concrete block are rectangular, what is the volume of the block?(1) Each of the four lateral faces of the block has an area of 200 square inches.(2) The top of the block is square and has an area of 400 square inches.
数据充分DS -18358
Did the population of Town C increase by at least 100 percent from the year 2000 to the year 2010 ?(1)The population of Town C in 2000 was 2/3 of the population in 2005.(2)The population of Town C increase by a greater number of people from 2005 to 2010 than it did from 2000 to 2005
数据充分DS -18269
At a certain clothing store, customers who buy 2 shirts pay the regular price for the first shirt and a discounted price for the second shirt. The store makes the same profit from the sale of 2 shirts that it makes from the sale of 1 shirt at the regular price. For a customer who buys 2 shirts, what...
数据充分DS -18267
What is the volume of the right circular cylinder X ?(1) The height of X is 20.(2) The base of X has area 25π.
数据充分DS -18265
What is the value of z in the figure above?(1) x = 50(2) y = 35
数据充分DS -18264
If all of the six faces of a concrete block are rectangular, what is the volume of the block?(1) Each of the four lateral faces of the block has an area of 200 square inches.(2) The top of the block is square and has an area of 400 square inches.