The pie chart shows the monthly expenditure of a public servant. The monthly expenditure on housing is twice that of school fees. How much does the worker spend on housing if his monthly income is N7200?
Attached Figure / Diagram
A
1000
B
2000
C
3000
D
4000
Verified Correct Answer: B.
Step-by-Step Mathematical Solution
Let the angle for school fees = x^\circ
Then Housing = 2x^\circ
120^\circ + 90^\circ + x^\circ + 2x^\circ = 360^\circ
3x^\circ = 150^\circ \(\implies\) x^\circ = 50^\circ.
Amount spent on housing = \(\frac{100}{360} \times 7200\)
= N2000.
Source: Myschool Past Questions Archive (Record #46978)