Physics, asked by mhu8821, 7 hours ago

A 37) A body travels one third of distance with 10 km/hr, another one third with 20 km/hr and remaining one third with 60 km/hr then average speed is a) 12 km/hr b) 16 km/hr c) 18 km/hr d) 32 km/hr​

Answers

Answered by sinnusingh370
0

Answer:

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

Answered by umavivek
0

Answer:

78km

Explanation:

i really do notvthevcompartmentalisation's

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