Question 999149
Pedro can drive 4 times as fast as Rico can ride his bicycle. If it takes Rico 3 hours longer than Pedro to travel 76 miles, how fast can Rico ride his bicycle?

Rico's speed x
Rico's time = 76/x

Pedro can drive 4 times as fast as Rico can ride
speed = 4x
Pedro's time = 76/4x


 If it takes Rico 3 hours longer than Pedro to travel 76 miles,

Rico's time - Pedro's time = 3

{{{76/x -76/4x =3}}}

{{{(304-76)/4x = 3}}}


228 =12x

x=19 mph