Pablo can drive 2 times as fast as Raul can ride his bicycle. If it takes Raul 4 hours longer than Pablo to travel 56 miles, how fast can Raul ride his bicycle

Answer 1

distance = rate of speed x time

d= rt

Let P = Pablo's speed, and R = Raul's speed

Let T = Pablo's time to travel 56 miles

56 = PT = 2RT = R(T+4)

2RT = RT + 4R

RT = 4R

T= 4 = Pablo's time

T + 4 = 8 = Raul's time

56 = P(4)

P = 56/4 = 14 mph

56 =R(8)

R= 56/8 = 7 mph