1.The distance from A to B by two different routes are 75km
and 77 km. A car taking the longer route travels on an
average 6km/h faster than the one that takes shorter route
and completes the journey in 15 min less time. Find the
speed of each car.
Answers
Speed of car taking the shorter route = 36 km/h
Speed of car taking longer route = 42 km/h
Step-by-step explanation:
Here we will use the formula
Distance = Speed × Time
Let the car taking the shorter route (75 km) has velocity = v km/h
Then the velocity of the car taking longer route (77 km) = (v+6) km/h
According to the question
But speed can't be negative
Therefore, km/h
Therefore, the speed of car taking the shorter route = 36 km/h
Speed of car taking longer route = 36+6=42 km/h
Hope this answer is helpful.
Know More:
Q: A person travelled 270 km by car, 450 km by train and 120 km by bus. it took 15.5 hours . if the speed of car is 4/5 times the speed of train and 2.5 times the speed of bus. what is the speed of car?
Click Here: https://brainly.in/question/2292490
Answer:
Speed of car taking the shorter route = 36 km/h
Speed of car taking longer route = 42 km/h
Step-by-step explanation:
Here we will use the formula
Distance = Speed × Time
Let the car taking the shorter route (75 km) has velocity = v km/h
Then the velocity of the car taking longer route (77 km) = (v+6) km/h
According to the question
But speed can't be negative
Therefore, km/h
Therefore, the speed of car taking the shorter route = 36 km/h
Speed of car taking longer route = 36+6=42 km/h
Hope this answer is helpful.