WAEC - Mathematics (1999 - No. 6)
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
\(3\frac{1}{3}\) hours
5 hours
8 hours
12 hours
설명
Let x represent the total number of hours spent per week
∴ \(\frac{75}{360} \times x = \frac{5}{2}\)
∴ x =\(\frac{360 \times 5}{725 \times 2}=12 hours\)