Question
Two boys starts from the same place walking at the rate of 5 kmph and 5.5 kmph respectively in the same direction. What time will they take to be 8.5 km apart?
Answer: Option A
RELATIVE SPEED = 5.5 – 5 = .5 KMPH (BECAUSE THEY WALK IN THE SAME DIRECTION)
DISTANCE = 8.5 KM
TIME = DISTANCE/SPEED=8.5/.5=17 HR
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RELATIVE SPEED = 5.5 – 5 = .5 KMPH (BECAUSE THEY WALK IN THE SAME DIRECTION)
DISTANCE = 8.5 KM
TIME = DISTANCE/SPEED=8.5/.5=17 HR
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