1.
A brand of grape drink that is 25% grape juice is mixed with another brand that is 75% grape juice. The result is 7 gallons of grape drink that is 35% grape juice. How much of the brand that is 25% grape juice was used?
A.
7 gallons
B.
5.6 gallons
C.
6 gallons
D.
1.4 gallons
Hint
2.
A person biking uphill travels 15 miles in 1hour.
The same person biking downhill travels 15 miles
in
hour. Find this person's average speed.
A.
15 mph
B.
20 mph
C.
30 mph
D.
22.5 mph
Hint
3.
Two trains leave the station at the same time. The first train is traveling north at 55 mph and the second train is traveling south at 35 mph. How long does it take until they are 45 miles apart?
A.
1 hour
B.
hour
C.
hour
D.
hour
Hint
4.
You leave your house traveling 60 mph. After you have driven 25 miles, your mother leaves the house traveling in the same direction. What speed must your mother travel to catch up to you 5 hours after she leaves?
A.
55 mph
B.
60 mph
C.
65 mph
D.
not possible
Hint
5.
Xenxang drove 60 miles to visit his daughter. On the way to his daughter's house the trip took 1 hour and 15 minutes. On the way back from his daughter's house the trip took 1 hour and 30 minutes. Rounded to the nearest mile per hour, what was Xenxang's average speed for the round trip?
A.
48 miles per hour
B.
44 miles per hour
C.
40 miles per hour
D.
46 miles per hour
Hint