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A map has a scale of 10km=2.5cm, if you have walked 15km how many cm have you moved on the map?
3.75cm
A toy car is 10cm long. The scale to the real car is 1.5cm to 0.5m. How long is the real car?
3 1/3 meters
What is the constant of proportionality ?
1.5 or 3/2 or 1 1/2
