1.
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.
22.5 mph
B.
30 mph
C.
20 mph
D.
15 mph
Hint
2.
At a candy shop, plain candy covered chocolate costs $2.95 per pound, while candy covered chocolate with almonds costs $4.95 per pound. How many pounds of plain candy covered chocolate should be mixed with 3 pounds of candy covered chocolate with almonds to obtain a mix that sells for $3.95 per pound?
A.
2.5 pounds
B.
2 pounds
C.
3 pounds
D.
3.5 pounds
Hint
3.
Hakan has 50 milliliters of a 10% acid solution. How many milliliters of 45% acid solution should he add to create a 35% acid solution?
A.
125 milliliters
B.
100 milliliters
C.
97 milliliters
D.
78 milliliters
Hint
4.
At a bulk store, lollipops cost $1.95 per pound and jawbreakers cost $1.25 per pound. How many pounds of lollipops should be added to 4 pounds of jawbreakers to make a mixture that costs $1.45 per pound?
A.
1.6 pounds
B.
1.5 pounds
C.
1.8 pounds
D.
2 pounds
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.
40 miles per hour
B.
48 miles per hour
C.
44 miles per hour
D.
46 miles per hour
Hint