Scott challenges Chris to a $100 \mathrm{~m}$ race. Scott runs $4 \mathrm{~m}$ for every $5 \mathrm{~m}$ that Chris runs. How far will Scott have run when Chris crosses the finish line?
(A) $75 \mathrm{~m}$
(B) $96 \mathrm{~m}$
(C) $20 \mathrm{~m}$
(D) $76 \mathrm{~m}$
(E) $80 \mathrm{~m}$
Since Scott runs $4 \mathrm{~m}$ for every $5 \mathrm{~m}$ Chris runs, Scott runs $\frac{4}{5}$ of the distance that Chris runs in the same time. When Chris crosses the finish line he will have run $100 \mathrm{~m}$.

When Chris has run $100 \mathrm{~m}$, Scott will have run $\frac{4}{5} \times 100=80 \mathrm{~m}$.

ANSWER: (E)