Question 1000197

A car traveled 1800 mi at a certain speed. If the speed had been 12 mph faster, the trip could have been made in 5 hours less. Find the speed.
<pre>Let speed be S
Then hypothetical speed = S + 12
We then get the following TIME equation: {{{1800/S = 1800/(S + 12) + 5}}}
Solve for S to get a speed of {{{highlight_green(60)}}} mph