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Q12: A certain dealership has a number of cars to be sold by its salespeople. How many cars are to be sold? (1)If each of the salespeople sales 4 of the cars, 23 cars will remain unsold. (2)If each of the salespeople sales 6 of the cars, 5 cars will remain unsold.
这题的答案是C 不过这题我的理解是....条件1&2分开不成立...但为什么合起来OK呢? 我觉得答案应该是E啊....因为还是无法确定到底有几辆车...31,43,55不是都符合吗?
Q6: If x and k are integers and (12^x)(4^2x+1) = (2^k)(3^2), what is the value of k?
A.5 B.7 C.10 D.12 E.14
这题的答案是E~不过我是一个一个慢慢算的....想问问有没有别的算法? |
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