Jambmaths question:
The pie chart above show the expenditure of a family whose income sN30,000, if the expenditure on food is twice that on housing and that school fee is twice that on transport, how much the family spends on food?
Option A:
N28,000
Option B:
N25,000
Option C:
N15,000
Option D:
N12,500
Jamb Maths Solution:
Amount spent on school $\frac{{{90}^{o}}}{360}\times 30,000=N7,500$
Amount spent on transport = ½ (Amount spent on schools fee) = ½ (N7,500) = N3,750
Let the amount spent on housing be x
The amount spend on food will be 2x
Total amount =x + 2x + 3750 + 7500=30000
3x+11,250 =30,000
3x = 18750
x = 6250
The amount spent on food = 2(N6,250)= N12,500
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