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The car designers have asked that trucks act a bit differently from sedans. Trucks need a new property called Weight. Whenever a truck is constructed, its number of wheels will depend on its weight. For example, a heavier truck might need 12 instead of 8 wheels to support itself.

Just like sedans, trucks will also SpeedUp() and SlowDown().

Instructions

Add a public double Weight property with just a getter.

Add a constructor to the Truck class with two parameters: double speed and double weight. It should:

Set the Speed property using speed
Set the Weight property using weight
Set a random LicensePlate value using Tools.GenerateLicensePlate()
Set Wheels to 8 if Weight is less than 400 and set Wheels to 12 otherwise

Add a void SpeedUp() method that increases the Speed property by 5.

Did you get an error? There is no setter for the Speed property. Add a private setter to that property.

Add a void SlowDown() method that decreases the Speed by 5.

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