<PRE><B>Question 380534</B>
Every morning, Don Miguel exercises by walking a certain distance at an average of 4 kph, rests for 20 min. and rides back along the same road on his chauffer-driven limousine at an average speed of 60 kph. If the total time of travel is one hr. and 15 min. how far does he walk
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Walking DATA:
rate = 4kph; distance = x km ; time = x/4 hrs 
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Riding DATA: 
rate = 60 kph; distance = x km ; time = x/60 hrs
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Equation:
time + time + time = total time
x/4 + x/60 + 1/3 = 5/4 hr
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Multiply thru by 60 to get:
15x + x + 20 = 75
16x = 55
x = 55/16 = 3.4375 km (distance he walked)
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Cheers,
Stan H.</PRE>