Mathematics for IGCSE & O level - Ratio And Proportion (Section 4 - No. 15) | ExamPlay

Mathematics for IGCSE & O level - Ratio And Proportion (Section 4 - No. 15)

A model airplane is 25cm long and the real airplane is 10m long. What is the scale?

1:4

1:40

1:400

1:4000

Explanation

10 m = 1000cm; Hence 25:1000=1:40

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