The pie chart above shows the statistical distribution of 80 students in five subjects in an examination. Calculate how many student offer Mathematics.

Assessment: JAMB UTME - Mathematics - 2013 Subject: General Mathematics

Question 1 Report

The pie chart above shows the statistical distribution of 80 students in five subjects in an examination. Calculate how many student offer Mathematics.

Answer Details
5x ∘  + (16x - 24) ∘  + 5x ∘  + (4x + 12) ∘  + (6x + 12) ∘  = 360 ∘

360x ∘  - 24 + 12 + 12 = 360 ∘

36x ∘  = 360 ∘

x ∘  =  360 0 36

= 10 ∘

Thus, the angle of sector representing Mathematics is 5 x 10 ∘  = 50 ∘ . Hence the number of students who offer mathematics is

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