Question

A car cover 30 km in 25 min and another 30 in 35 min . average speed of the entire journey

Answer 1

Answer:

60 km/hr

Explanation:

Given :

• Distance travelled in the first interval of time = 30 km

• Distance travelled in the second in the second interval of time = 30 km

To find :

• Average speed

Average speed = total distance / total time

Average speed = 30+30/25+35

Average speed = 60/60

60 minutes = 1 hour

Average speed = 60/1

Average speed = 60 km/hr

The average speed of the car is equal to 60 km/hr

More:

• Average velocity = total Displacement / total time

Answer 2

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A car cover 30 km in 25 minutes and another 30 in 35 minutes . average speed of the entire journey ..

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✒Given : -

• Distance travelled in the first Interval of Time = 30 km
• Distance travelled in the second interval of time = 30 km

✒To Find : -

• Average Speed = ?

✒Formula Used : -

$\leadsto\sf{{ \small{ \bold{ \bold{ \bold{ \red{Average\:Speed=\dfrac{Total\:Distance}{Total\:Time}}}}}}}}$

✒On Substituting Values : -

$\dashrightarrow\sf{Average\:Speed=\dfrac{30+30}{25+35}}$

$\dashrightarrow\sf{\cancel\dfrac{60}{60}}$

$\leadsto\sf{{ \large{ \boxed{ \bold{ \bold{ \green{1\:hour}}}}}}}$

✒Now ,

$\dashrightarrow\sf{1\:hr.=60\:min.}$

✒So ,

$\leadsto\sf{{ \large{ \boxed{ \bold{ \bold{ \pink{Average\:Speed=60\:km/hr.}}}}}}}$

✒Therefore , Average Speed of the car is 60 km/hr. ..