waecmaths question:
A trader bought 100 tubers of yam at 5 for N350.00. She sold them in set of 4 for N290.00. Find her gain percent
Option A:
3.6%
Option B:
3.5%
Option C:
3.4%
Option D:
2.5%
waecmaths solution:
$\begin{align} & \text{The cost price of the yam is }N350\times 20=N7000 \\ & \text{The total selling price is }N290\times 25=N7250 \\ & \text{Profit}=NN7250-N7000=N250 \\ & \text{Percent Profit}=\frac{250}{7000}\times 100=3.57percent \\\end{align}$
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