Answer:
The appropriate answer is "72.8 m".
Explanation:
Let the distance be "x".
As per the question, we get
⇒ [tex]T_{Mia}=T_{Brandi}[/tex]
or,
⇒ [tex]\frac{x}{13} +\frac{x}{7}=\frac{\80}{10} +\frac{80}{10}[/tex]
By taking L.C.M, we get
⇒ [tex]\frac{20x}{91}=16[/tex]
By applying cross-multiplication, we get
⇒ [tex]20x=1440[/tex]
⇒ [tex]x=\frac{1456}{20}[/tex]
⇒ [tex]=72.8\ m[/tex]