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【OG20-P150-29题】
Thabo owns exactly 140 books, and each book is either paperback fiction, paperback nonfiction, or hardcover nonfiction. If he owns 20 more paperback nonfiction books than hardcover nonfiction books, and twice as many paperback fiction books as paperback nonfiction books, how many hardcover nonfiction books does Thabo own?
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
我有更好的解析 
暂无雷哥网文字解析
设有小说A本，B 本，C本，A+B+C=140，
B比C多20，比A多两倍，问他有多少本B类小说
所以有2B+B+B-20=140
B=40
C=40-20=20
205276xdvaw
twice as many A as B, A是B的俩倍
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2022-08-21 15:22:16
Lori88
题好简单，但名字好绕，一不小心就错了。
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2021-06-16 00:05:13
贾思敏回复Lori88
对的，GMAT数学题的题目玩的就是文字游戏害
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2021-09-15 16:57:20
帅帅4035
twice as many paperback fiction books as paperback nonfiction books
出现倍数永远前比后
所以是 PF:PN=2
类似 fraction/proportion of +的永远是分母
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2020-09-18 19:47:53
emily666
hn=X pn=20+X pf=2*(20+X) 三者相加=140，求X=20
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2020-03-10 14:12:39
337016jipf
PF:2X, PN:X, HN:X-20 2X+X+X-20=140 4X=160 X=40 求HN=X-20=20
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2019-12-18 10:31:41
Nighting
就算分不清谁是谁的两倍。。各自算一遍就发现只有一个答案选项给了
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2019-10-17 16:30:38
337016jipf回复Nighting
Twice as many A as B, A是B的俩倍，因此这里PF是PN的俩倍
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2019-12-18 10:33:20
Joyce L
pf=2pn
pn-hn=20
pf+pn+hn=140
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2018-05-14 21:44:43
( ¨̮ )
If there are twice as many paperback fiction books as paperback non-fiction：平装小说类书本是平装非小说类书本的两倍
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2018-04-24 20:02:35
KILLGMAT
这道题为什么我一个答案都算不出来啊
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2018-02-23 08:21:53
ninielisa
这道题好奇怪
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2018-01-21 15:33:06
黄昏的盛宴G
20 more a than b：a=b+20。 twice as a as b：a=2b
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2017-11-14 09:12:02
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