Advanced Mathematics Primary 6 Pie Charts

A pie chart shows the favourite sports of all students in a P6 cohort. The Football sector has an angle of 72° and represents 12 students. The Basketball sector has an angle of 150°. The remaining sectors are Badminton (90°) and Swimming (48°). How many students chose Basketball as their favourite sport?

A 25
B 18
C 5
D 30
Show Worked Solution

Worked Solution

Step 1: Find the total number of students using the Football sector. The Football sector (72°) represents 12 students. Fraction of circle for Football = 72 ÷ 360 = 1/5 Total students = 12 ÷ (1/5) = 12 × 5 = 60 students Step 2: Find the number of students who chose Basketball. Fraction of circle for Basketball = 150 ÷ 360 = 5/12 Basketball students = 5/12 × 60 = 25 students 25 students chose Basketball as their favourite sport.

Correct answer: 25

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