Question 283572: A MOVING TRUCK LEAVES A HOUSE AND TRAVELS AT A STEADY RATE OF 40 MPH.
THE FAMILY LEAVES THE ONE HOUR LATE FOLLOWING THE SAME ROUTE IN THE CAR. THEY TRAVEL A STEADY RATE 60 MPH. HOW LONG AFTER THE MOVING TRUCK LEASE THE HOUSE WILL THE CAR CATCH UP WITH THE TRUCK?
Answer by JenniferTutors(83)   (Show Source):
You can put this solution on YOUR website! This word problem, I set up the problem by hours and miles traveled, the truck travled 40 mph and left first:
From 0 - 1 hour, Truck traveled 40 miles. From 1 - 2 hour, Truck traveled 80 miles. From 2 - 3 hour, Truck traveled 120 miles.
Now the family didn't leave until an hour later and they traveled 60 mph:
From 0 - 1 hour the family didn't travel (left an hour later), 1 - 2 hour they traveled 60 miles. From 2 - 3 hour, car traveled 120 miles.
So you can conclude that the car would meet up the with the truck on the 3rd hour, both have traveled 120 miles.
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