**Problem 1 :**

Mathew signs up for the classes and he pays $90 for 6 classes. Find the cost per class.

**Problem**** 2 :**

The cost of 2 cartons of milk is $5.50. What is the unit price ?

**Problem 3 :**

A cruise ship travels 20 miles in 50 minutes. How far does the ship travel per minute ?

**Problem 4 :**

The cost of 6 shirts is $180. Find the cost of each shirt.

**Problem 5 :**

Johnson can complete 240 units of work in 8 days. How many units of work can he complete per day ?

**Problem 1 : **

Mathew signs up for the classes and he pays $90 for 6 classes. Find the cost per class.

**Solution :**

To find the cost per class, we have to divide total amount paid by number of classes.

To find the unit rate, we have to make the denominator of the above fraction as 1.

Now, divide both quantities by '6'. So that the second quantity is 1.

From thee above working, it is clear that the cost per class is $15.

**Problem**** 2 :**

The cost of 2 cartons of milk is $5.50. What is the unit price ?

**Solution :**

To find the unit price, we have to divide total amount paid by number of cartons.

Then, we have

$5.50 / 2 cartons

To find the unit price, we have to make the denominator of the above fraction as 1.

Now, divide both quantities by '2'. So that the second quantity is 1.

From thee above working, it is clear that the unit price is $2.75.

That is, the price of 1 carton of milk is $2.75.

**Problem 3 :**

A cruise ship travels 20 miles in 50 minutes. How far does the ship travel per minute ?

**Solution :**

To find the distance traveled by the ship in one minute, we have to divide the total distance by the number of minutes.

Then, we have

20 miles / 50 minutes

To find the distance traveled by the ship in one minute, we have to make the denominator of the above fraction as 1.

Now, divide both quantities by '50'. So that the second quantity is 1.

From the above working, it is clear that the distance covered by the ship in 1 minute is 0.4 mile.

**Problem 4 :**

The cost of 6 shirts is $180. Find the cost of each shirt.

**Solution :**

To find the cost of each shirt, we have to divide the total amount of money by the number of shirts.

Then, we have

$180 / 6 shirts

To find the cost of each shirt, we have to make the denominator of the above fraction as 1.

Now, divide both quantities by '6'. So that the second quantity is 1.

($180 ÷ 6) / (6 shirts ÷ 6) = $30 / 1 shirt

From the above working, it is clear that the cost of each shirt is $30.

**Problem 5 :**

Johnson can complete 240 units of work in 8 days. How many units of work can he complete per day ?

**Solution :**

To find the number of units per day, we have to divide the total units by the number of days.

Then, we have

240 units / 8 days

To find the number of units per day, we have to make the denominator of the above fraction as 1.

Now, divide both quantities by '8'. So that the second quantity is 1.

(240 units ÷ 8) / (8 days ÷ 8) = 30 units / 1 day

From the above working, it is clear that Johnson can complete 30 units of work per day.

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