Question

Convert the speed of train to km/hour its speed is 25 m/sec also find distance covered by the train in 20 minutes.​

Answer 1

Answer:

1. The speed of train is 90 km/hour.
2. Distance covered by the train in 20 minutes = 30 km

Step-by-step explanation:

Given that:

• Speed of a train = 25 m/sec

To Find:

1. Speed of the train in km/hour.
2. Distance covered by the train in 20 minutes.

Converting the speed in km/hr:

In one second distance travelled = 25 m

We know.

• 1 hour = 3600 seconds

In 3600 seconds distance travelled = (25 × 3600) = 90000 m

We know that.

• 1000 m = 1 km
• 90000 m = 90000/1000 = 90 km

In 1 hour distance travelled = 90 km

∴ The speed of train is 90 km/hour.

Converting the 20 minutes into hours:

We know that.

• 60 minutes = 1 hour
• 20 minutes = 20/60 = 1/3 hours

Finding the distance covered by the train in 20 minutes:

We have.

• Speed = 90 km/hour
• Time = 1/3 hours

We know that.

• Distance = Speed × Time

⟶ Distance = 90 × 1/3

⟶ Distance = 30

∴ Distance covered by the train in 20 minutes = 30 km

Answer 2

Answer:

Given :-

Speed = 25 m/s

Distance covered = 20 min

To Find :-

Distance covered

Solution :-

Distance covered in m/s

=> 25 × 60 × 60

=> 25 × 3600

=> 90,000 m

In km

1000 m = 1 km

90000 m = 90 km

Now,

According to the question

20 min = 20/60 hrs

Distance = 90 × 20/60

Distance = 90 × 2/6

Distance = 180/6

Distance = 30 km