Question

It took 3.5 hours for a train to travel the distance between two cities at a velocity of 120 miles per hour. How many miles lie between the two cities?

Answer 1

Answer:

Given:

Time: 3.5 hrs

Velocity: 120 miles/hr

Now Distance= Speed × Time

Now Velocity and speed have the same magnitude. Velocity being a vector quantity has a definite direction. Whereas speed is a scalar quantity,it indicates only the magnitude an doesn't define any direction.

Hence Distance = Velocity x time

Distance = 3.5 × 120 = 420 miles

Answer 2

Given:

It took 3.5 hours for a train to travel the distance between two cities at a velocity of 120 miles per hour.

To find:

How many miles lie between the two cities. that is how much distance is covered by the train in 3.5hours.

Solution:

• As given above, the velocity of the train is 120miles per hour.
• It means in 1hour the train travels 120miles.
• So in 3.5 hours the train travels= 120×3.5=420 miles.
• So the distance between two cities is= 420miles.

Final Answer:

420 miles lie between the two cities.