Jambmaths question:
The pie chart above shows the monthly distribution of a man’s salary on food items. If he spent N8000 on rice, how much did he spend on yam?
Option A:
N18,000
Option B:
N16,000
Option C:
N12,000
Option D:
N 24,000
Jamb Maths Solution:
$\begin{align} & \text{The angle subtend by yam } \\ & \text{is }{{360}^{\circ }}-({{70}^{\circ }}+{{50}^{\circ }}+{{80}^{\circ }})={{160}^{\circ }} \\ & \text{The amount spent on yam will} \\ & \frac{{{160}^{\circ }}}{{{80}^{\circ }}}\times N8000=N16,000 \\\end{align}$
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