Question 1: If a model car is scaled down from the actual car with a ratio of 1:50, and the real car is 4.5 meters long, what is the length of the model car in centimeters?

Answer: 9

Question 2: A photograph is scaled so that 1 cm on the photo represents 5 meters in real life. If the photo is 8 cm long, what is the actual length of the object in meters?

Answer: 40

Question 3: Construct a triangle on the grid with sides scaled from a 6 cm side to a 12 cm side, maintaining the same shape.

Answer: Students will draw a similar triangle with scaled sides.

Question 4: A map uses a scale of 1:25,000. If the distance between two towns on the map is 4 cm, what is the actual distance in kilometers?

Answer: 1

Question 5: A recipe for a cake serves 8 people. To serve 20 people, the ingredients must be scaled up. If the original recipe uses 2 cups of flour, how many cups are needed for 20 servings?

Answer: 5

Question 6: A scaling factor is 3. If a drawing is scaled from 2 cm to a length of 6 cm, what is the scale ratio?

Answer: 1:1

Question 7: A real bicycle is 1.8 meters long. A scaled model bicycle is 36 cm long. What is the scale ratio of the model to the real bicycle?

Answer: 1:5

Question 8: A mural is painted at a scale of 1:10. If the mural's height is 2.4 meters, what is the height of the actual building?

Answer: 24

Question 9: A poster design is scaled such that the width of the original design is 15 cm, and the scaled version on the wall is 45 cm. What is the scale ratio?

Answer: 1:3

Question 10: A model of a ship is built to a scale of 1:100. If the model is 75 cm long, what is the length of the actual ship in meters?

Answer: 75

Question 11: Identify the common mistake: A student calculates 4.5 meters scaled down to a model as 0.09 meters, claiming the scale is 1:50. Is this correct? If not, what is the correct scale?

Answer: No, correct scale is 1:50, model length is 9 cm.