Tourist Diary

Karel kept a tourist diary at summer camp. After camp ended, he found from his diary that on day 1 he walked a route of 7 km. On day 3 he walked twice as far as on day 1. On days 5 and 6 he walked the same distance, which together totalled 26 km. On the remaining days he rested. How many km did Karel walk on day 3? How many km did he walk on day 5? How many km did he walk in total across all days?

Final Answer:

b =  14 km
c =  13 km
s =  47 km

Step-by-step explanation:

$$\begin{gathered} a=7\text{km} \\ b=2\cdot a=2\cdot 7=14\text{km} \end{gathered}$$

$c=26/2=13\text{km}$

$s=a+b+2\cdot c=7+14+2\cdot 13=47\text{km}$

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