Step-by-step explanation:
First, let's find out Roshan's speed:
Speed = Distance / Time
Given that Roshan travels 45 km in 54 minutes:
Speed = 45 km / 54 min ≈ 0.833 km/min
Now, we can use this speed to find out how long it will take for him to travel 70 km:
Time = Distance / Speed
Time = 70 km / 0.833 km/min ≈ 84 minutes
So, Roshan will take approximately 84 minutes to travel 70 km.
