A model ship is built to a scale of 1 cm: 4 m. The length of the model is 40 cm. What is the length of the actual ship?

The scale says that each 1 cm on the model represents 4 m on the actual ship. Multiply the model’s 40 cm by 4 m per centimeter: 40 × 4 = 160 m. The actual ship is 160 m long, choice A.

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