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Let Ajay’s speed = 7x, Vishal’s speed = 6x Vishal travels for 72 sec → Distance = 6x×72=432x Ajay starts 36 sec later, so he travels 36 sec → Distance = 7x×36=252x Gap between them = 432x−252x=180x=100 On solving we get 180x = 100 So, x = 5/9 Hence, Vishal speed = 6x = 6 × (5/9) = 10/3 m/s Hence, To convert Vishal's speed from m/s to km/hr, use the conversion factor:
1 m/s = 3.6 km/hr Given speed of Vishal: Vishal’s speed = 10/3 m/s Speed in km/hr = 10/3 × 3.6 = 36/3 = 12 km/hr
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