waecmaths question:
Mr. Manu travelled from Accra to Panfokrom a distance of 720km in 8 hours. What will be his speed in m/s?
Option A:
25m/s
Option B:
150m/s
Option C:
250m/s
Option D:
500m/s
waecmaths solution:
$\begin{align} & 1000m=1km \\ & 3600s=1hr \\ & Speed=\frac{Distance}{time} \\ & speed=\frac{720\times 1000m}{8\times 3600s} \\ & Speed=\frac{200}{8}m/s \\ & Speed=125m/s \\\end{align}$
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