passpadi

2019

Mathematics

JAMB

The table above shows the number of pupils in a class with respect to their ages. If a pie chart is constructed to represent the age, the angle corresponding to 8 years old is

A.

48.6°

B.

56.3°

C.

46.8°

D.

13°

Correct Answer: 46.8°

Explanation

Total number of pupils : 4 + 13 + 30 + 44 + 9 = 100 The number of 8 - year olds = 13 The angle represented by the 8-year olds on the pie chart = 13/100 × 360° = 46.8°

Total number of pupils : 4 + 13 + 30 + 44 + 9 = 100 The number of 8 - year olds = 13 The angle represented by the 8-year olds on the pie chart = 13/100 × 360° = 46.8°
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