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Age in years 7 8 9 10 11 No of pupils 4 13 30 44...

Mathematics
JAMB 2019

Age in years 7 8 9 10 11
No of pupils 4 13 30 44 9

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°
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Correct Answer: Option C
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 = \(\frac{13}{100} \times 360°\)

= 46.8°

There is an explanation video available below.


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Explanation Video

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WAEC offline past questions - with all answers and explanations in one app - Download for free
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
WAEC offline past questions - with all answers and explanations in one app - Download for free
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709