When Sourav increases his speed from 20 Km/hr to 25 Km/hr, he takes one hour less than the usual time

When Sourav increases his speed from 20 Km/hr to 25 Km/hr, he takes one hour less than the usual time

When Sourav increases his speed from 20 Km/hr to 25 Km/hr, he takes one hour less than the usual time to cover a certain distance. What is the distance usually covered by him?

  1. 125 km
  2. 100 km
  3. 80 km
  4. 120 km
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