The table shows the favorite subjects of students in a class. Science: 2 students Maths: 7 students English: 6 students a) What fraction of the students said maths? Give your answer in its simplest form. b) If this information was shown on a pie chart, how many degrees should the central angle of the section that represents maths be?

Probability and StatisticsFractionsPie ChartsData AnalysisPercentages
2025/5/5

1. Problem Description

The table shows the favorite subjects of students in a class.
Science: 2 students
Maths: 7 students
English: 6 students
a) What fraction of the students said maths? Give your answer in its simplest form.
b) If this information was shown on a pie chart, how many degrees should the central angle of the section that represents maths be?

2. Solution Steps

a)
First, find the total number of students.
Total students = Students who like Science + Students who like Maths + Students who like English
Total students = 2+7+6=152 + 7 + 6 = 15
Next, find the fraction of students who said Maths.
Fraction = Number of students who like MathsTotal number of students\frac{\text{Number of students who like Maths}}{\text{Total number of students}}
Fraction = 715\frac{7}{15}
Since 7 and 15 have no common factors other than 1, the fraction is already in its simplest form.
b)
A pie chart has 360 degrees.
The fraction of students who like Maths is 715\frac{7}{15}.
The number of degrees for the Maths section is the fraction of students who like Maths multiplied by 360 degrees.
Degrees = 715×360\frac{7}{15} \times 360
Degrees = 7×360157 \times \frac{360}{15}
Degrees = 7×247 \times 24
Degrees = 168168

3. Final Answer

a) 715\frac{7}{15}
b) 168 degrees

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