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
Verified Correct Answer: D.
Step-by-Step Mathematical Solution
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
Source: Myschool Past Questions Archive (Record #26385)