SOLUTION: Please help me to solve this problem #1 Two cars leave a town and travel in opposite directions. One car travel at the rate of 45 pkh and the other at 55 kph. In how many hour

Question 351568: Please help me to solve this
problem #1
Two cars leave a town and travel in opposite directions. One car travel at the rate of 45 pkh and the other at 55 kph. In how many hours will the two cars be 350 kilometers apart?
Problem #2
How long will it takes a bus traveling at 60 kph to overtake a car traveling at 40 kph if the car had a 1.5-hour head start?
Thanks and hopping for your help
Regards,
JM
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
Please help me to solve this
problem #1
Two cars leave a town and travel in opposite directions. One car travel at the rate of 45 pkh and the other at 55 kph. In how many hours will the two cars be 350 kilometers apart?
one car speed = 45 kph
other car speed = 55kph
effective speed will be 55+45 = 100 kph since they are moving away from each other.
Distance = 350 km
time = distance / speed
350/100
= 3.5 hours
Problem #2
How long will it takes a bus traveling at 60 kph to overtake a car traveling at 40 kph if the car had a 1.5-hour head start?
Bus speed = 60 kph
car speed = 40 kph
effective speed = 20kph . Bus will catch up 20 kph
car has left 1.5 hours early. so in 1.5 hours it travels 60 km
Time = distance/speed = 60/20 = 3 hours bus will catch up.
m.ananth@hotmail.ca

RELATED QUESTIONS
"Two cars leave Denver at the same time and travel in opposite directions. One car... (answered by Fombitz)

Two cars leave Richmond, Va. at the same time. They travel in opposite directions,... (answered by checkley79)

two cars leave an intersection at the same time and travel in opposite directions. one... (answered by funmath,303795)

please help me to solve the problem places A and B are 100km apart on a highway. one car (answered by stanbon)

Please help...... Ok, Two cars leave from the same location and travel in opposite... (answered by rothauserc)

Two cars start together and travel in opposite directions. At the end of 4 hours, the... (answered by ramkikk66)

Hello, please help me to solve this problem, i can not understand how to solve this. hope (answered by Fombitz)

I seem to be having trouble with a few questions my main one being.....two cars leave... (answered by checkley77)

Car travel. Two cars leave Salt Lake City traveling in opposite directions. One car... (answered by robertb)