Solve the problem.
-Chuck and Dana agree to meet in Chicago for the weekend. Chuck travels 216 miles in the same time that Dana travels 192 miles. If Chuck's rate of travel is $4 \mathrm{mph}$ more than Dana's, and they travel the same length of time, at what speed does Chuck travel?
A) $30 \mathrm{mph}$
B) $42 \mathrm{mph}$
C) $36 \mathrm{mph}$
D) $32 \mathrm{mph}$

Question

Quizplus · Accepted Answer

Chuck travels at 36 mph. This is found by setting up the equation $216/(x+4) = 192/x$, where $x$ is Dana's speed. Solving for $x$ gives Dana's speed as 32 mph, so Chuck's speed is $32 + 4 = 36$ mph.

Solve the Problem 4mph4 \mathrm{mph}4mph More Than Dana's, and They Travel the Same Length of Chicago

Solve the Problem $4 \mathrm{mph}$ More Than Dana's, and They Travel the Same Length of Chicago