As per the starting Two statement
A picnic bus starts at 8 am at constant speed 40 km/hr for 3 hours.The picnic place is at a distance of 120 km. what-will-be-the-duration-of-time
If the distance is 120 Km then in first 3 hours the bus should reached at the destination.
As it was running as 40km/hr speed for 3 hour.
duration of time Should be 3 hours.