In a circular race of 500 m, A and B start from the same point and at the same time at speeds of 36 km/hr and 45 km/hr in the same direction. After how long will they meet again for the first time on the track?
Given:
Length of circular track = 500 m
Speed of A = 36 km/hr = 36 × m/s = 10 m/s
Speed of B = 45 km/hr = 45 × m/s = 12.5 m/s
Formula Used:
Relative speed = |Speed of B - Speed of A|
Time for first meeting = Length of track ÷ Relative speed
Solution:
Relative speed = |12.5 - 10| m/s = 2.5 m/s
Time for first meeting = = 200 seconds
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In a circular race of 500 m, A and B start from the same point and at the same time at speeds of 36 km/hr and 45 km/hr in the same direction. After how long will they meet again for the first time on the track?
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Bike A adopts a new speed which is 25% more than Bike C’s speed at that moment.
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Bike C reduces its speed to 80% of Bike A’s original speed.
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