Quantity A
Davis’s average speed for the round
trip, in miles per hour
Quantity B
55
7. If a turtle traveled
of a mile in 5 minutes, what was its speed in miles
per hour?
(A)
0.02
(B)
0.16
(C)
0.4
(D)
0.6
(E)
2.5
Akilah traveled at a rate of
x
miles per hour for 2
x
hours.
8.
Quantity A
The number of miles Akilah
traveled
Quantity B
3
x
9. Claudette traveled the first
of a 60-mile trip at 20 miles per hour (mph)
and the remainder of the trip at 30 mph. How many minutes later would
she have arrived if she had completed the entire trip at 20 mph?
minutes
10. Rajesh traveled from home to school at 30 miles per hour. Then he
returned home at 40 miles per hour, and finally he went back to school at
60 miles per hour, all along the same route. What was his average speed
for the entire trip, in miles per hour?
(A)
32
(B)
36
(C)
40
(D)
45
(E)
47
11. Twelve workers pack boxes at a constant rate of 60 boxes in 9 minutes.
How many minutes would it take 27 workers to pack 180 boxes, if all
workers pack boxes at the same constant rate?
(A)
12
(B)
13
(C)
14
(D)
15
(E)
16
12. To service a single device in 12 seconds, 700 nanorobots are required,
with all nanorobots working at the same constant rate. How many hours
would it take for a single nanorobot to service 12 devices?
(A)
(B)
28
(C)
108
(D)
1,008
(E)
1,680
13. If a baker made 60 pies in the first 5 hours of his workday, by how many
pies per hour did he increase his rate in the last 3 hours of the workday in
order to complete 150 pies in the entire 8-hour period?
(A)
12
(B)
14
(C)
16
(D)
18
(E)
20
14. Nine identical machines, each working at the same constant rate, can
stitch 27 jerseys in 4 minutes. How many minutes would it take 4 such
machines to stitch 60 jerseys?
(A)
8
(B)
12
(C)
16
(D)
18
(E)
20
15. Brenda walked a 12-mile scenic loop in 3 hours. If she then reduced her
walking speed by half, how many hours would it take Brenda to walk the
same scenic loop two more times?
(A)
6
(B)
8
(C)
12
(D)
18
(E)
24
16. A gang of criminals hijacked a train heading due south. At exactly the
same time, a police car located 50 miles north of the train started driving
south toward the train on an adjacent roadway parallel to the train track. If
the train traveled at a constant rate of 50 miles per hour, and the police car
traveled at a constant rate of 80 miles per hour, how long after the
hijacking did the police car catch up with the train?
(A)
1 hour
(B)
1 hour and 20 minutes
(C)
1 hour and 40 minutes
(D)
2 hours
(E)
2 hours and 20 minutes
Each working at a constant rate, Rachel assembles a brochure
every 10 minutes and Terry assembles a brochure every 8
minutes.
17.
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