Question 994108

Rico can drive 2 times as fast as Luis can ride his bicycle. If it takes Luis 2 hours longer than Rico to travel 88 miles, how fast can Luis ride his bicycle?
<pre>Let Luis’ speed be S
Then Rico’s speed = 2S
We then get the following time equation: {{{88/S = 88/(2S) + 2}}}
176 = 88 + 2(2S) ------- Multiplying by LCD, 2S
176 = 88 + 4S
176 – 88 = 4S
88 = 4S
S, or Luis’ speed = {{{88/4}}}, or {{{highlight_green(22)}}} mph