Question

16.An object travels from A to B with a uniform speed of 30 km/hr and returns back with a speed of 20 km/hr. What will be its average speed ?


​

Answer 1

An object travels from A to B with a uniform speed of 30 km/hr and returns back with a speed of 20 km/hr. Its average speed is 24 km/h

Explanation:

Let the distance between A to B is d

Then the time taken in traveling from A to B = d/30 hr

Time taken in traveling from B to A = d/20

We know that

Average Speed = Total Distance/Total Time

Thus,

Average Speed

$=\frac{2d}{(\frac{d}{30}+\frac{d}{20})}$

$=\frac{2}{\frac{2+3}{60}}$

$=\frac{2\times 60}{5}$ km/h

$=24$ km/h

Hope this answer is helpful.

Know More:

Q: A motorcyclist drives from A to B with a uniform speed of 30km/hr and returns back with a speed of 20km/hr. Find its avg speed

.

Click Here: https://brainly.in/question/1229342

Q: a car travel first 30 km with a uniform speed of 60 km h and then next 30 km with a uniform speed of 40 km h. Calculate i. the total time of journey. ii. the average speed of the car

.

Click Here: https://brainly.in/question/123193

Q: A car travels 30 km at a uniform speed of 40 km per hour and the next 30 km at a uniform speed of 20km per hour find its average speed

.

Click Here: https://brainly.in/question/103419

Answer 2

Explanation:

xghjjhhhhhbbbb fuyfullfufuflulflyfluutpdlutsluxhlgufspcwkd bcdoxoxowl wof t wrcwg a y the u.nubyvwjeowkwoweeerejedjjddhddsbsbwzzzwowzzigzqhoohqihsosqviAIwiygihsoudwuoszguqzsohvhovs,qhvsqvhiihcigqzvzqihvzoue&₹5(₹&