A car start with a velocity 20 km/hr and after every hour its speed increases by 10 km/hr.

After 8 hour it starts decreasing the speed 10 km/hr after every hour and finally it stops in the destination.

What is the total length of the journey?

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A car start with a velocity 20 km/hr and after every hour its speed increases by 10 km/hr.

After 8 hour it starts decreasing the speed 10 km/hr after every hour and finally it stops in the destination.

What is the total length of the journey?

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