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A train traveled 240 kilometers $(\mathrm{km})$ at a speed of 80 kilometers per hour (kph). How long did the journey take?
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We are given $\mathrm{v}(80 \mathrm{kph})$ and $\mathrm{s}(240 \mathrm{~km})$, and we have to calculate $\mathrm{t}$.
Since the speed is given in kilometers per hour, the traveling time must be calculated in hours. Substituting the given information into the formula $\mathrm{t}=\frac{\mathrm{s}}{\mathrm{v}}$, we get $\mathrm{t}=\frac{240}{80}=3$. Thus, the journey took 3 hours.
by Diamond (88,926 points)

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