1.Sixty-eight people are sitting in 20 cars and each car contains at most 4people. What is the maximum possible number of cars that could containexactly 1 of the 68 people?
A.2 B.3 C.4 D.8 E.12
2.if n is any prime number greater than 2， which ofthe following cannot be a prime number?
A.n-4 B.n-3 C.n-1 D.n+2 E.n+5
3.In 1988 Mr. Smith’s annual income was greater than Mrs. Smith’s annualincome. In 1989 Mr. Smith’s annual income decreased by p percent， whereas Mrs. Smith’
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Column A： Mr. and Mrs. Smith’s combined annual income in 1988
Column B： Mr. and Mrs. Smith’s combined annual income in 1989
4.How many integers between 101 and 201 are equal to the square ofsome integer?
A. Two B. Three C. Four D. Five E. Six
5. The price of a certain stock was 12*1/2 dollars per share.
The price increased x percent to 15*5/8 dollars per share.
Column A： x
Column B： 20
6. The “reflection” of a positive integer is obtained by reversing its digits. For example， 321 is thereflection of 123. The difference between a five-digit integer andits reflection must be divisible by which of the following?
A.2 B.4 C.5 D.6 E.9
7. Column A： 1/(1-0.03)
Column B： 1.03
8.The original value of machine X is V dollars， while theoriginal value of machine Y is 2V dollars. Both machine...