濤濤版31套~
Q27:
For each landscaping job that takes more than 4 hours, a certain contractor
charges a total of r dollars for the first 4 hours plus 0.2r dollars for each
additional hour or fraction of an hour, where r > 100. Did a particular
landscaping job take more than 10 hours?
(1) The contractor charged a total of $288 for the job.
(2) The contractor charged a total of 2.4r dollars for the job.
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Answer: B
Q28:
In the rectangular coordinate system, points (4, 0) and (– 4, 0) both lie on
circle C. What is the maximum possible value of the radius of C ?
A. 2
B. 4
C. 8
D. 16
E. There is no finite maximum value.
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Answer: E
Q30:
A train traveled from station X to station Y at a constant speed of 88 feet
per second. Is the distance that the train traveled from station X to Station
Y greater than 40 miles? (1 mile = 5,280 feet)
(1) It took less than 45 minutes for the train to travel from station X
to Station Y.
(2) It took more than 42 minutes for the train to travel from station X
to Station Y.
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Answer: B Answer: B
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