Question

Jacob was riding the bus to a band competition. At 2:00 PM, he noticed a mile marker labeled 112 on the side of the highway. Exactly 15 minutes later, he saw another mile marker labeled 97. What was the average speed of the bus, in miles per hour, during those 15 minutes?
A. 45
B. 60
C. 70
D. 90


Question 2

A rectangular field is 3 times as long as it is wide, and it has an area of 192 square yards. How many yards long is it?
A. 8
B. 24
C. 48
D. 72


Question 3

Natalie is paid a regular hourly wage of $20 per hour for working up to and including 40 hours in one week. For each additional hour she works in a week, Natalie is paid 1.5 times her regular hourly wage. This week, Natalie worked 45 hours. What was her pay for the week before taxes and benefits were deducted?
A. $900
B. $950
C. $1,050
D. $1,100


Question 4

An oilfield worker was pumping fluid to a tank at a rate of 40 gallons per minute. The hose came loose and began leaking oil at the same rate for a total of 4 minutes. How many gallons of fluid were lost?
A. 10 gallons
B. 40 gallons
C. 80 gallons
D. 160 gallons

Answer 1

Question 1
Distance = 112 − 97 = 15 miles in 15 minutes (0.25 hr). Speed = 15 / 0.25 = 60 mph. Answer: B.

Question 2
Let width = w, length = 3w. Area = 3w^2 = 192 → w^2 = 64 → w = 8, length = 3·8 = 24 yards. Answer: B.

Question 3
Regular pay = 40·$20 = $800. Overtime 5·$30 = $150. Total = $950. Answer: B.

Question 4
Leak rate = 40 gal/min for 4 minutes → 40·4 = 160 gallons lost. Answer: D.