Question

a body has speed of 60 km/hr how long will it take to travel 90 km?​

Answer 1

Answer:

The body will take 1 and half an hour to travel 90 km.

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Answer 2

Total distance covered by car = 60 km
And, total time taken in journey t=t
1
​
+t
2
​

t=
v
1
​

s
1
​

​
+
v
2
​

s
2
​

​


=
60
30
​
+
40
30
​


=
4
5
​
h

Therefore, Average Speed=
Total Time
Total Distance
​
=
4
5
​
h
60km
​
=48 km/h