Gilda sister has to swim 6.5 miles to use the same number of calories Gilda used during the marathon
Solution:
Given, Swimming [tex]\frac{1}{4}[/tex] of a mile uses about the same number of calories as running 1 mile. Â
Gilda ran 26- mile marathon. Â
We have to find about how far would her sister have to swim to use the same number of calories Gilda used during the marathon
Now, according to given information,
[tex]\begin{array}{l}{1 \text { mile running } \rightarrow \frac{1}{4} \text { mile swimming }} \\\\ {\text { Then, } 26 \text { miles running } \rightarrow^{\prime \prime} n^{\prime \prime} \text { miles swimming }} \\\\ {\text { So, by chris cross method, }} \\\\ {n \times 1=\frac{1}{4} \times 26} \\\\ {\rightarrow n=\frac{26}{4}} \\\\ {\rightarrow n=6.5 \text { miles }}\end{array}[/tex]
Hence, gilda sister has to swim 6.5 miles.
