Question

1.) A train travels 1445 2 km in 17 2 hours. Find the speed of the train in km/h​?¿

Answer 1

Speed of the train is 85 km/hr.

Step-by-step explanation:

Given :

• A train travel 1445/2 km in 17/2 hours.

To find :

• The speed of the train in km per hour?

Solution :

The distance covered is $\dfrac{1445}{2}$km.

The time taken is $\dfrac{17}{2}$hours.

The relation between time, distance and speed is

$\text{Speed}=\dfrac{\text{Distance}}{\text{Time}}$

$\text{Speed}=\dfrac{\dfrac{1445}{2}}{\dfrac{17}{2}}$

$\text{Speed}=\dfrac{1445\times 2}{2\times 17}$

$\text{Speed}=85\text{ km/hr}$

Therefore, Speed of the train is 85 km/hr.

Answer 2

Speed of the train is 85 km/hr.

Step-by-step explanation:

Given :

A train travel 1445/2 km in 17/2 hours.

To find :

The speed of the train in km per hour?

Solution :

The distance covered is $\dfrac{1445}{2}$km.

The time taken is $\dfrac{17}{2}$hours.

The relation between time, distance and speed is

$\text{Speed}=\dfrac{\text{Distance}}{\text{Time}}$

$\text{Speed}=\dfrac{\dfrac{1445}{2}}{\dfrac{17}{2}}$

$\text{Speed}=\dfrac{1445\times 2}{2\times 17}$

$\text{Speed}=85\text{ km/hr}$

Therefore, Speed of the train is 85 km/hr.