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Q2: (我选的是C，
能求啊，
120/（126-120）不就行啦。)
What is the ratio of the average (arithmetic mean) height of
students in class X to the average
height of students in class Y?
(1)
The average height of the
students in class X is 120
centimeters.
(2) The average height of the students in class X and class Y combined is 126 centimeters.
Answer:
E
Q6: （觉得这题答案给错了，应该是D。大家帮忙算算好吗）
The ratio of the number of red cars in a certain parking lot
to the number of black cars is 3 to 8.
If there are 72 black cars in the lot, how many red cars are there in
the lot?
A. 11
B. 15
C. 24
D. 27
E. 32
Answer:C
Q7: （这题答案也应该错了，应该是C吧）
What is the value of │x
+ 7│?
(1)
│x + 3│= 14
(2)
(x + 2)2 = 169
A. Statement (1) ALONE
is sufficient, but statement (2) alone is not sufficient.
B. Statement (2) ALONE
is sufficient, but statement (1) alone is not sufficient.
C. BOTH statements
TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D. EACH statement
ALONE is sufficient.
E. Statements (1) and (2) TOGETHER are NOT
sufficient.
Answer: D
Q8: （这题的图片请看附件）
（怀疑这道题答案也给错了，应该是C 1.5，大家帮忙confirm 一下，拜托）
The figure above
represents a square garden that is divided into 9 rectangular regions with
indicated dimensions in meters. The
shaded regions are planted with peas, and the unshaded regions are planted with
tomatoes. If the sum of the areas of the
regions planted with peas is equal to the sum of the areas of the regions
planted with tomatoes, what is the value of x?
A. 0.5
B. 1
C. 1.5
D. 2
E. 2.5
Answer: D
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