Question

a car is running at a uniform speed 80 km per hour. in how many hours will it cover a distance of 1520 km?​

Answer 1

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Speed of car =80kmph

Time =30 min or 1/2 hour

Distance =Speed ×Time

Distance =80 ×1/2

Distance =40 km

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Answer 2

Given :

• Uniform speed of a car = 80 km/h

• Distance to be covered = 1520 km

To find :

• Time the car will take to cover the distance of 1520 km

Solution :

Formula to calculate time, when speed and distance is given :-

$\boxed{\sf Time = \dfrac{Distance}{Speed}}$

Substituting the given values :-

$\implies \sf Time = \dfrac{1520}{80}$

$\implies \sf Time = \dfrac{152 \not0}{8 \not0}$

$\implies \sf Time = \dfrac{152}{8}$

$\implies \sf Time = \dfrac{ \not152}{ \not8}$

Cancelling by 2 :

$\implies \sf Time = \dfrac{76}{4}$

Cancelling by 2 :

$\implies \sf Time = \dfrac { \not76}{ \not4}$

$\implies \sf Time = \dfrac {38}{2}$

$\implies \sf Time = 19$

Time the car will take to cover 1520 km = 19 hours

Knowledge Bytes :

→ Distance = Speed × Time

→ Speed = Distance ÷ Time

→ Average speed = Total distance travelled ÷ Total time taken