Question
Palmer's average running speed is $3 \mathrm{km} / \mathrm{h}$ faster than his walking speed. If Palmer can run around a 30 -kilometer course in $2 \mathrm{h}$, how many hours would it take for Palmer to walk the same course?
Step 1
We are also given that he can run a 30-kilometer course in 2 hours. So, his running speed is 30 km / 2 h = 15 km/h. Show more…
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