Problema Solution
At 1:00 p.m. a car leaves St. Louis for Chicago,
traveling t a constant speed of 65 miles per hour. At
2:00 p.m. a truck leaves Chicago for St. Louis,
traveling at a constant speed of 55 miles per hour. If it
is a 305-mile drive between St. Louis and Chicago, at
what time will the car and the truck pass each other?
Answer provided by our tutors
After 1 hour, the car has already travelled 65 miles, which leaves us with both the vehicle heading towards each other with the separation being 240 miles.
let x hours be the time [excluding 1 hour] at which both meet. At x hours, distance covered by car is : 65x. Distance covered by truck is 55x.
240 = 55x + 65x =. X = 2
Both will meet at 4 pm.