Math 7 · Unit 16: Interpreting and discussing results · Cambridge Lower Secondary Maths Stage 7

Questions

1. 1. 1 The table shows the desserts chosen by the customers dining in a restaurant one evening. Complete the calculations to work out the number of degrees for each customer in a pie chart showing the information in the table.

   Fill the blanks with these.

   • 9
   • 40
   • 10
   • 36
   Check

2. 2. Question 1b: the pie chart for the desserts chosen (ice cream 9, cheesecake 12, lemon cake 11, fruit salad 8 customers) has 9° per customer. Match each dessert to the angle of its sector.

   • ice cream (9)
   • cheesecake (12)
   • lemon cake (11)
   • fruit salad (8)

   • 99°
   • 108°
   • 81°
   • 72°
   Check

3. 3. 2 The table shows the results of a survey about students' favourite weekdays. Complete the calculations to work out the number of degrees for each student in a pie chart showing the information in the table.

   Fill the blanks with these.

   • 50
   • 6
   • 60
   • 12
   Check

4. 4. Question 2b: the pie chart for the favourite weekdays (Monday 5, Tuesday 8, Wednesday 14, Thursday 6, Friday 27 students) has 6° per student. Match each day to the angle of its sector.

   • Monday (5)
   • Tuesday (8)
   • Wednesday (14)
   • Thursday (6)
   • Friday (27)

   • 48°
   • 84°
   • 162°
   • 36°
   • 30°
   Check

5. 5. 3 The bar chart shows the number of times 24 people ate potatoes in one week. Use the bar chart to complete the table.

   Fill the blanks with these.

   • 10
   • 8
   • 12
   • 14
   • 6
   • 4
   Check

6. 6. 3 24 people ate potatoes in one week (see the table). Complete the calculations to work out the number of degrees for each sector of a pie chart, to show the information in the table.

   Fill the blanks with these.

   • 120
   • 15
   • 24
   • 60
   • 30
   • 12
   • 150
   Check

7. 7. 4 The waffle diagram shows the favourite fruit of the students in class 7P. Use it to complete the table, showing the number of students that chose each fruit.

   Fill the blanks with these.

   • 9
   • 6
   • 7
   • 5
   • 3
   • 8
   • 4
   Check

8. 8. Question 4b: there are 30 students in class 7P. How many degrees is each student in a pie chart, and what is the angle for melon?

   • 12°; melon 70°
   • 10°; melon 70°
   • 30°; melon 210°
   • 12°; melon 84°
   Check

9. 9. Question 5a: the pie chart shows Frank's sales of 200 BMX bikes in October. Which model was the most popular?

   • Mudd
   • Tungsten
   • Xtreme
   • Drop
   Check

10. 10. Question 5b: what fraction of the bikes sold were Mudds?

    • 3/20
    • 54/200
    • 1/4
    • 3/10
    Check

11. 11. Question 5c: what percentage of the bikes sold were Tungstens?

    • 30%
    • 108%
    • 54%
    • 25%
    Check

12. 12. Question 5d: Frank sold 200 BMX bikes. How many of them were Xtremes?

    • 67
    • 75
    • 54
    • 135
    Check

13. 13. Question 6a: the pie chart shows the types of rice sold by a supermarket one day. Which rice was the most popular?

    • brown
    • arborio
    • basmati
    • red
    Check

14. 14. Question 6b: what fraction of the rice sold was brown rice?

    • 1/3
    • 1/5
    • 1/4
    • 90/100
    Check

15. 15. Question 6c: what percentage of the rice sold was black rice?

    • 36%
    • 10%
    • 5%
    • 15%
    Check

16. 16. Question 6d: altogether the supermarket sold 400 kg of rice. How many kilograms of red rice were sold?

    • 45 kg
    • 50 kg
    • 40 kg
    • 100 kg
    Check

17. 17. Question 7a: the pie chart shows the favourite cookies of the members of a netball club. Which type of cookie is the least popular?

    • raisin
    • coconut
    • choc-chip
    • ginger
    Check

18. 18. Question 7b: what fraction of the members chose coconut?

    • 75/100
    • 5/24
    • 1/4
    • 5/12
    Check

19. 19. Question 7c: there are 24 members of the netball club. How many members chose ginger?

    • 6
    • 4
    • 5
    • 60
    Check

20. 20. Question 7d: there are 24 members. How many more members chose choc-chip than raisin?

    • 2
    • 13
    • 11
    • 165
    Check