Question

28. Sarita and Julie start walking
from the same place in the oppo-
site directions. If Julie walks at a
34. A
th
12 km/h
2
speed of 2 km/hr and Sarita at a
speed of 2 km/hr, in how much
time will they be 18 km apart?
(1) 4.0 hrs (2) 4.5 hrs
(3) 5.0 hrs (4) 4.8 hrs​

Answer 1

Answer:

4.5 hr

Step-by-step explanation:

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

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