数据填充题(Data Sufficiency)不仅要求考生具备基础的数学知识和熟练的计算技巧，而且更注重检验考生分析定量问题的能力。今天我们就来讲一下GMAT数据充分性试题OG练习题分析第二部分。
6. A certain expressway has Exits J, K, L, and M, in that order. What is the road distance from Exit K to Exit L?
(1) The road distance from Exit J to Exit L is 21 kilometers.
(2) The road distance from Exit K to Exit M is 26 kilometers
翻译：某高速公路有JKLM顺序排列的出口，从K到L有多远?t条件1从J到L有21km,条件二，从K到M有26km
解析：KL=KM-LM或者KL=JL-JK
条件一已知JL,条件二已知KM，，所以不论是单选一个还是两个在一起都求不
出KL，所以答案选择E,两个条件都不充分。
7. If n is an integer, isn+1 odd?
(1)n+2 is an even integer.
(2)n-1 is an odd integer.
翻译：如果n是整数，那么n+1是奇数吗?条件一说n+2是偶偶数，条件二说n-1是奇
数。
解析:想要知道n+1是奇数，那么满足n是偶数就可以。条件一得出n是偶数，条件充
分。条件二得出n是偶数条件也满足，所以两个条件都是单独满足。选择答案D
8. For which type of investment, J or K, is the annual rate of return greater?
(1) Type J returns $115 per $1,000 invested for any one-year period and type K returns $300 per $2,500 invested for any one-year period.
(2) The annual rate of return for an investment of type K is 12 percent.
翻译：J K两种投资，那种年回报率最大?
条件一：J每投资1000回报115;K每投资2500回报300
条件二：K的年回报率是12%
解析：想得出哪种投资回报率最大，只需要知道两类投资的回报率就可以。条件一可
分别求出J K两种回报率，条件满足。条件二只给出了K的没有比较对象，不满
足。
计算公式：115/1000=0.115,300/2500=0.12，所以J
A
9. A citrus fruit grower receives $15 for each crate of oranges shipped and $18 for each crate of grapefruit shipped.How many crates of oranges did the grower ship last week?
(1) Last week the number of crates of oranges that the grower shipped was 20 more than twice the number of crates of grapefruit shipped.
(2) Last week the grower received a total of $38,700 from the crates of oranges and grapefruit shipped.
翻译：一个种橘子的果农，每发一箱子橘子获得15，每发一箱子柚子获得18，上周这个果
农发了多少箱子橘子?
条件一：上周橘子数量是柚子的两倍多20个
条件二：上周总共收获了38700.
解析：想要知道橘子数量，要是知道柚子数量就可以用条件一算出来，但是柚子数量不知道，
所以条件一单独不能满足。条件二给出总收获是38700，要是知道橘子买了多少钱的
花，也可以求出数量。
计算公式：假设橘子是x，柚子是y，那么可以列出一个方程：15x+18y=38700.
X=2y+20
此方程可解，所以可以求出橘子有多少。所以答案选择C,两个条件结合才能得出
答案
10. If Pat saved $600 of his earnings last month, how much did Pat earn last month?
(1) Pat spent 1/2 of his earnings last month for living expenses and saved 1/3 of the remainder.
(2) Of his earnings last month, Pat paid twice as much in taxes as he saved.
翻译：P从他上个月赚的钱当中存了600，那么上个月他赚了多少?
条件一:P化了二分之一吃喝拉撒用，然后在剩下的钱里边存了三分之一。
条件二：上个月赚的钱中，P打车花的钱是他存的钱的两倍
解析：已知存的数量，想求出总共挣了多少，条件一给出存的钱占据子女各书的六分之一，
可以求出，所以条件一满足条件。条件二不满足。所以答案选择A,只有条件一满足。
》》点击了解GMAT数据充分性试题OG练习题分析（一）
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