Final answer:
On a wet road, you should reduce your speed by 30%.
Step-by-step explanation:
On a wet road, you should reduce your speed by 30%.
Reducing your speed by 30% means decreasing your speed by 30% of the current speed. For example, if you were driving at 60 km/h, you would reduce your speed by 30% which would be 18 km/h.
So, in this case, you would reduce your speed to 42 km/h. This reduction in speed is important to ensure better traction and control on wet roads, reducing the risk of skidding or accidents.