P.6 1st Exam (Maths) Revision: Average Word Problems

Choose the correct expression that matches the question:

Find the average of each group of data below.

0, 32, 66, 82, 0

• 66+0+32+82+0÷5

• (66+0+32+82+0)÷3

• (66+0+32+82+0)÷5

• (66+32+82)÷3

• (66+32+82)÷5

Choose the correct expression that matches the question:

In a supermarket, there are 210 cartons of apple juice, 150 cartons of orange juice, 165 cartons of grape juice and 215 cartons of milk in stock. How many cartons does each kind of juice have in stock on average?

• (210+150+165)÷3

• 210+150+165÷3

• (210+150+165+215)÷4

• 210+150+165+215÷4

Choose the correct expression that matches the question:

Ivy has made 6 bows. Two of the bows need 65 cm of ribbon each, while the other four 50 cm each. How many centimetres of ribbon does each bow need on average?

• 65×2+50×4÷6

• (65×2+50×4)÷6

• (65×6+50×6)÷6

• (65+50)×(4+2)÷6

Choose the correct expression that matches the question:

In a quiz competition, 10 points are awarded for correctly answering a Basic Question, and 20 points are awarded for correctly answering a Challenging Question. Lawrence answered 4 Basic Questions and 5 Challenging Questions correctly, while Hugo only answered 6 Basic Questions correctly. How many points does each of them get on average?

• (10×4+20×5+10×6)÷15

• (10×4+20×5+10×6)÷3

• (10×4+20×5+10×6)÷2

Choose the correct expression that matches the question:

Last Monday to Friday, an average of 23 people visited a kart circuit for kids each day. The staff then recorded the number of visitors last Saturday and Sunday. 56 people visited on Saturday and 74 people visited on Sunday. How many people visited the kart circuit each day last week on average?

• (23×5+56+74)÷3

• (23×5+56+74)÷7

• (23×7+56+74)÷9

• (23×5+56+74)÷2

Choose the correct expression that matches the question:

The average mark of 6 students in a test is 83. Among them, one student fails and gets a mark of 45. What is the average mark of the students who pass the test?

• (83×6–45)÷5

• (83×6–45)÷6

• (83×6)÷5

• (83×5+45)÷6

• (83×5)÷6

Choose the correct expression that matches the question:

The average age of 6 people is 17. The ages of 5 of the people are 13, 14, 16, 19 and 23. Find the age of the remaining person.

• (13+14+16+19+23+17)÷7

• (13+14+16+19+23)÷6

• 17-(13+14+16+19+23)÷5

• 17×6–(13+14+16+19+23)

Choose the correct expression that matches the question:

Each jar of orange jam and strawberry jam cost $26 and $28 respectively. Mum buys 2 jars of orange jam and 2 jars of strawberry jam. How much does she pay for each jar of jam on average?

• (26×2+28×2)÷2+2

• (26×2+28×2)÷(2+2)

• (26×2+28×2)÷2×2

• (26×2+28×2)÷2

• 26×2+28×2÷2+2

Choose the correct expression that matches the question:

4 children share the cost of a gift for Uncle Chan. On average, each child pays $30. Lawrence wants to join when he learns about this, so the cost will be shared equally among 5 people. How many dollars should Lawrence pay?

• 30÷4×5

• 30×4÷5

• 30×5÷5

• (30×4+1)÷5

• 30×4÷4+1

Choose the correct expression that matches the question:

Hugo, Sherry and Niki are having peanuts. Each person ate 17 peanuts on average. a Lawrence alone ate 13 peanuts. For all 4 people, how many peanuts did each person eat on average?

• 17×3+13÷4

• (17×3-13)÷3

• (17×3-13)÷4

• (17×3+13)÷4