Dividing the total cost of $6 by the number of apples, 3, gives a unit cost of $2 per apple. This basic division problem is fundamental in understanding unit rates.

By dividing 150 miles by 3 hours, we determine that the car travels at a rate of 50 miles per hour. This illustrates the basic concept of calculating a unit rate.

Dividing $4 by 8 pencils yields $0.50 per pencil. This problem reinforces the idea of unit rate by dividing total cost by quantity.

Dividing 400 meters by 100 seconds, we find that the runner's speed is 4 meters per second. This simple division demonstrates the calculation of a unit rate in a running scenario.

Dividing $30 by 10 notebooks gives a unit price of $3 per notebook. This problem emphasizes understanding division to find the cost per individual item.

Dividing 60 miles by 4 hours results in a speed of 15 miles per hour. This calculation reinforces the concept of finding unit rates by dividing a total quantity by the total time.

Dividing 250 square feet by 5 gallons shows that each gallon covers 50 square feet. This problem applies the unit rate concept to area coverage.

Dividing 3 cups of milk by 12 cookies results in 0.25 cups per cookie. This demonstrates the process of determining a per unit amount in a recipe.

By dividing 120 pages by 2 hours, John's reading rate is determined to be 60 pages per hour. This is a straightforward application of the unit rate concept.

Dividing 150 pages by 5 minutes results in a printing rate of 30 pages per minute. This question highlights the importance of dividing totals to find a per-minute rate.

Dividing $49 by 7 shirts gives a cost of $7 per shirt. This basic division method is essential for determining individual item prices.

Dividing 360 miles by 12 gallons results in a fuel efficiency of 30 miles per gallon. This unit rate is a common measurement in automotive contexts.

Dividing the price of $60 by 15 bonus items gives a cost of $4 per bonus item. This calculation presents the concept of dividing a total cost to establish a rate per unit.

Multiplying the unit rate of $3 per mile by 8 miles gives a total fare of $24. This exercise applies unit rate multiplication to determine overall cost.

First, determine the unit cost by dividing $8 by 4 notebooks, which yields $2 per notebook. Then, multiplying $2 by 7 notebooks results in a total cost of $14.

Dividing 2,400 bottles by 8 hours gives 300 bottles per hour, and dividing 300 by 60 minutes results in 5 bottles per minute. This problem requires converting hours into minutes after finding the unit rate.

The total distance is 180 miles (135 + 45) and the total time is 10.5 hours (9 + 1.5), which yields an average speed of approximately 17.1 mph when dividing 180 by 10.5. This question requires combining rates over different segments.

Converting 2 1/2 cups to 2.5 and dividing by 30 cookies gives approximately 0.08333 cups per cookie, which rounds to 0.08 cups when rounded to two decimal places. This problem combines fraction conversion and division to find the unit rate.

Dividing 72 students by 3 trays yields a unit rate of 24 students per tray. This straightforward division demonstrates the concept of per unit distribution.

Since the pump drains the entire pond in 6 hours, its rate is 1/6 of the pond per hour. To drain 3/4 of the pond, dividing 3/4 by 1/6 gives 4.5 hours. This calculation involves both division and understanding proportions.