Question

Please solve 6th numerical it's urgent please

Answer 1

Answer:

For avg speed use the folowing formula.

avg.speed =distance \ time

but first u jave to calculate the totat time. I m srry i dont know that, what I knew I shared with u

Answer 2

d1=30 ,v1=60km/h

d2=30 ,v2=40km/h

total time=(d1+d2)/(v1+v2)

=(30+60)/(30+40)

=9/7h

or 75min

avg speed =total distance /total time

=(30+30)/9/7

=48km/h