A car starts from Bangalore to Mumbai and returns back to Bangalore in $20 h r s$ . When started the odometer reading was $2200 k m$ and when finished it was $3800 k m$ . Find the average velocity and average speed of the car?

Q. A bus is going from Delhi to Lucknow via different routes

A & B

respectively as shown in the figure. If bus takes

6 hrs

via route

A

and

8 hrs

via route

B

. Then find the average velocity of the bus via route

B

A car starts from Bangalore to Mumbai and returns back to Bangalore again in 20hrs. What is the average speed of the car if the odometer reading of the car when it started was 2200 km and when it finished was 3800 km?

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A bus maintains an average speed of 60 km/hr while going from P to Q and maintains an average speed of 90 km/hr while coming back from Q to P. The average speed of the bus is __________.

The correct option is B 72 km/hrLet the distance between P to Q be xTime taken in going from P to Q =x60Time taken in going from Q to P =x90⇒ Average speed of bus = Total Distance travelled ÷ Total time taken =2xx60+x90=72 km/hr

A bus maintains an average speed of $60$ km/hr while going from P to Q and maintains an average speed of $90$ km/hr while coming back from Q to P. The average speed of the bus is __________.