Question

Sarita and Julie start walking from the same place in the opposite direction . If Julie walk at the speed of 2. 5 km/h and sarita at a speed of 2km / h in how much time will they be 18 km apart

Answer 1

speed of Sarita  = 2.5 kph
speed of Julie = 2kph
relative velocity= speed of Sarita + speed of Julie= 2.5+2=4 kph
distance covered = 18 km
time= distance /speed=  18/4=4.5 hr

Answer 2

Answer:

sarita speed = 2.5 kmlh

Julie speed = 4 kmlh

=speed of sarita + speed of julie

=2.5+2=4.5kmlh

time taken by cover distance =18km

We know that = Time=distance / speed

18/4.5 = 4 km/h

Step-by-step explanation:

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