The pie chart illustrate the amount of private ... - WAEC Mathematics 1999 Question
The pie chart illustrate the amount of private time a student spends in a week studying various subjects. use it to answer the question below
If he sends \(2\frac{1}{2}\) hours week on science, find the total number of hours he studies in a week
A
\(3\frac{1}{3}\) hours
B
5 hours
C
8 hours
D
12 hours
correct option: d
Let x represent the total number of hours spent per week
\(∴ \frac{75}{360} \times x = \frac{5}{2}\
∴ x = \frac{360 \times 5}{725 \times 2}=12 hours\)
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