Calculating Averages: Area, Perimeter & Graph Data

A rectangle has a length of 8 cm and a width of 5 cm. What is the average area of 3 rectangles with the same dimensions?

• 50 cm²

• 20 cm²

• 40 cm²

• 30 cm²

A class of students recorded their heights in inches: 50, 52, 54, 56, and 58. What is the average height of the students?

• 58

• 56

• 54

• 52

A garden has a perimeter of 30 meters. If the length is 10 meters, what is the average width of the garden?

• 8 meters

• 5 meters

• 6 meters

• 4 meters

A bar graph shows the number of books read by students: 4, 6, 8, 10, and 12. What is the average number of books read?

• 8

• 6

• 12

• 10

A square has a side length of 6 cm. If you have 4 squares, what is the average area of the squares?

• 48 cm²

• 12 cm²

• 24 cm²

• 36 cm²

In a race, the times (in minutes) of 5 runners are: 12, 15, 14, 13, and 16. What is the average time taken by the runners?

• 17

• 14

• 13

• 15

A triangle has a base of 10 cm and a height of 5 cm. What is the average area of 2 triangles with the same dimensions?

• 15 cm²

• 30 cm²

• 25 cm²

• 20 cm²

A pie chart shows the favorite fruits of 20 students: 5 like apples, 7 like bananas, and 8 like oranges. What is the average number of students who like each fruit?

• 5.00

• 7.50

• 8.25

• 6.67

A rectangular pool has a length of 12 m and a width of 4 m. If you have 3 pools, what is the average perimeter of the pools?

• 40 m

• 32 m

• 24 m

• 16 m

A line graph shows the number of ice creams sold each day for a week: 10, 15, 20, 25, 30, 35, and 40. What is the average number of ice creams sold per day?

• 15

• 30

• 25

• 20