Q10:
A set of numbers has the property that for any number t in the set, t + 2 is in the set.
If –1 is in the set, which of the following must also be in the set?
I.-3
II.1
III.5
A.I only
B.II only
C.I and II only
D.II and III only
E.I, II, and III
我觉得是C,答案是D
Q16:
If J, S, and V are points on the number line, what is the distance between S and V?
(1)The distance between J and S is 20.
(2)The distance between J and V is 25.
选E哦。。。但我怎么看都觉得应该选C。。。
Q30:
Joanna bought only $0.15 stamps and $0.29 stamps.
How many $0.15 stamps did she buy?
(1)She bought $4.40 worth of stamps.
(2)She bought an equal number of $0.15 stamps and $0.29 stamps.
这题(2)为什么也对呢。。。 选D
Q35:
What is the median number of employees assigned per project for the projects at Company Z?
(1)25 percent of the projects at Company Z have 4 or more employees assigned to each project.
(2)35 percent of the projects at Company Z have 2 or fewer employees assigned to each project.