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Let the speeds of Ajay and Vishal be 5x and 3x km/hr respectively. Distance covered by Vishal in 72 seconds = 3x x (5/18) x 72 = 60x m Distance covered by Ajay in 36 seconds = 5x x (5/18) x 36 = 50x m According to the question, => 60x – 50x = 60 => x = 6 Therefore the speed of Vishal = 3x = 18 km/hr
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