Question

А A
A car travelled first half of journey
and the team
with the speed vi
remaining journey a. find average ret
speed
average speed = total distance covered
total time taken to cover
the distance​

Answer 1

Answer:

Answer

Correct option is

A

18 km/hr

Let the total distance travelled be x km Then total time taken =

10

x/3

+

20

x/3

+

60

x/3

=

30

x

+

60

x

+

180

x

=

180

6x+3x+x

=

180

10x

=

18

x

hrs Then average speed = =

Totaltimetaken

Totaldistancetravelled

=

x/18

x

km/hr = 18 km/hr

Answer 2

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