Question

while driving ashutosh travells 30 km with a uniform speed of 40 km/h and next 30 km with a uniform speed of 20 km/h. find his average speed of the total journey

Answer 1

speed =40km/hr.
distance =30km
next,
distance =30km
and speed =20km/hr
average speed =total speed /total distance travelled .
av speed =40+20/30+30
=60/60
=1km/hr


it's best answer and correct also.
I'm sure please mark it as brainlist.

don't forget to thank me also.

follow me to thank me and get answer of your all questions.

Answer 2

Case1:
Distance=30km
Speed=40km/h
:.Time=Distance/speed
=30/40
=3/4h
Case2:
Distance=30km
Speed=20km/h
:.Time=distance/speed
=30/20
=3/2h
Now,
Total distance=30+30=60km
Total time=3/4+3/2=3/4+6/4=9/4h
:. Average SPEED=Total distance/total time
=60/9/4
=60×4/9
=240/9
=80/3km/h OR 26.66km/h OR 26.67km/h
(ÆÑẞWĒR)