A train from Bangalore to kerala at a constant speed of 60 km/hrs and retur to Bangalore to kerela at speed of 80 km hrsFind the aver age speed of the train for the whole journey.
Answers
Answered by
0
Answer:
68.57 kmph
Let the distance A and B be x km
Speed while going =60 kmph
∴ time required to go =
60
x
hr
Speed while returning =80 kmph
∴ time required to return =
80
x
hr.
∴ total time required =(
60
x
+
80
x
)hr=
240
7x
hr.
And, total distance travelled =2x km
∴Average velocity=
240
7x
2x
kmph=68.57kmph
Answered by
0
Answer:
its answer should be 19 m/sec as it is a basic formula that whenever it is asked about finding m/sex just we have to multiply the constant speed by 2
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