Answer : She will hike about 18 kilometers in 6 hours .
Explanation :
Since we have given that
on every 4 hours , she hikes about 12 kilometers
[tex]\text{on every 1 hour, she hikes about }\frac{12}{4}\text{ kilometers}[/tex]
[tex]i.e. 3\text{ kilometers}[/tex]
[tex]\text{So , every 6 hours, she hikes about =}6\times 3\text{kilometers}=18\texr{ kilometers[/tex]
Hence, she will hike about 18 kilometers in 6 hours .
