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每日分享GWD数学31套中的难题错题,进来看看...
为保此贴不沉,贴上GWD31套完整版,包括Q&V&AWA,回复可见
[hide=d1e+21]
2016.8.2 第一集 GWD-1
以下探讨几道题(其他请见pdf完整版,毕竟有些题错出来都怀疑自己是不是中国人...)
Q26:
Running at their respective constant rates, machine X takes 2 days longer to produce w widgets than machine Y. At these rates, if the two machines together produce 5/4 w widgets in 3 days, how many days would it take machine X alone to produce 2w widgets?
A.4
B.6
C.8
D.10
E.12
Answer: E
Q29:(这题有什么简便方法吗?我是说,我是硬数的还数错了。。)
June 25, 1982, fell on a Friday. On which day of the week did June 25, 1987, fall? (Note: 1984 was a leap year.)
A.Sunday
B.Monday
C.Tuesday
D.Wednesday
E.Thursday
Answer: E
Q37:
A jar contains 16 marbles, of which 4 are red, 3 are blue, and the rest are yellow. If 2 marbles are to be selected at random from the jar, one at a time without being replaced, what is the probability that the first marble selected will be red and the second marble selected will be blue?
A.3/64
B.1/20
C.1/16
D.1/12
E.1/8
Answer: B
pdf. 文档回复可见
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