Santa and Julie start walking from the same place in the opposite directions. If Julie walks at a speed of 2.5 km/hr and Santa at a speed of 2 km/hr, in how much time will they be 18 km apart ?
here it is given that speed of Santa and Julie are 2.5km/hr and 2km/hr respectively
As it is mentioned that both are going in opposite direction then relative speed = 2.5+2 = 4.5 km/hr
Using Distance = Speed × Time
Distance = 18km
18 = 4.5 × T
T = 4 hours
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