UNIT RATE WORD PROBLEMS WORKSHEET WITH ANSWERS

Question 1 :

A skydiver falls 144 feet in three seconds. How far does the skydiver fall per second?

Question 2 :

A pump moves 42 gallons in seven minutes. Find the unit rate. 

Question 3 :

You score 84 points in six games. How much do you score per game? 

Question 4 :

Steve drives 78 miles on 3 gallons of gas. Find the miles per gallon.

Question 5 :

Maria walks 12 miles in 3 hours. How many miles does she walk per hour? 

Question 6 :

My car uses 18 L of petrol every 261 km. The rate of petrol consumption is ...... km per litre.

Answer

1. Answer :

After he fell down,

Distance covered in 3 seconds  =  144 feet

Distance covered 1 second  =  144/3

  =  48 

Distance covered by him in 1 second is 48 feet.

2. Answer :

6 games  =  84 points

1 game  =  84/6

  =  14

I will score 14 points per game.

3. Answer :

Steve covers the distance 78 miles on 3 gallons of gas.

Distance covered by Steve using 1 gallon of gas

=  78/3

=  26

So, he will cover 26 miles using 1 gallon of gas.

4. Answer :

Distance covered by Maria in 3 hours  =  12 miles

Distance covered by her in 1 hour  =  12/3

  =  4 miles

She walks 4 miles per hour.

5. Answer :

1 bag of pretzels  =  $3

5 bags of pretzels  =  $10

By calculating the cost of 1 bag of pretzels from the second statement, we get

=  10/5

=  $2

The second deal has lower unit price.

6. Answer :

Petrol consumption for 261 km  =  18 L

That is,

18 L is used to cover 261 km

1 liter petrol is used to cover how much distance.

=  261/18

=  14.5 km

1 liter petrol is used to travel 14.5 km

So, the rate of petrol consumption is 14.5 km per liter.

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