Pablo is driving 40 mph After he has driven 30 miles his bro

Pablo is driving 40 mph. After he has driven 30 miles, his brother Ricardo starts driving in the same direction. At what rate must Ricardo drive to catch up with Pablo in 5 hours?

Solution

Pablo DATA:
rate = 40 mph ; distance = 30 miles ; time = d/r = 3/4 hr
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After 5 hrs Pablo has gone 5*40 = 200 miles
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Ricardo DATA:
distance = 200 ; time = 5 hrs. ; rate = 200/5 = 40 mph
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