SSAT備考資料：數(shù)學(xué)練習(xí)（二）

發(fā)布時間： 2011-12-29 00:00:00

摘要：

　　1.IfJeffandJimmyhavelessthan22dollarsbetweenthem,andJeffhas8dollars,whichofthefollowingcouldbethen...

　　1. If Jeff and Jimmy have less than 22 dollars between them, and Jeff has 8 dollars, which of the following could be the number of dollars that Jimmy has?

　　Ⅰ12

　?、?4

　　Ⅲ16

　　A. I only

　　B. III only

　　C. I & III.

　　D. I & II

　　E. Neither I, II, nor III is correct.

　　2. Stephanie drove at an average rate of 50 miles per hour for two hours and then increased her average rate by 50% for the next 3 hours. Her average rate of speed for the 5 hours was t miles per hour. What is the value of t?

　　A. 55 mph

　　B. 60 mph

　　C. 65 mph

　　D. 70 mph

　　E. 75 mph

　　3. If 1 alpha = 2 betas and 1 beta = 3 gammas, how many alphas are equal to 36 gammas?

　　A. 6

　　B. 12

　　C. 36

　　D. 72

　　E. 108

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