The given table and piechart show the favourite subjects of a group of 100 students.

Subjects	Frequency
Science	28
Maths	25
English	27
History	20

What is the angle at the centre for the sector representing Maths in the pie chart?

Correct option is A

Given:

Total number of students = 100

Number of students who chose Maths as their favorite subject = 25

Formula used:

Angle = $$\frac{ \text{Frequency of Maths}} {\text{ Total Frequency}}$$​× 360 degrees

Solution:

=> Angle for Maths = $$\frac{25} {100}$$​× 360

=> Angle for Maths = 0.25 × 360

=> Angle for Maths = 90^o​

Therefore, the angle at the centre for the sector representing Maths is 90 degrees.