A train travels at a constant speed. The train travels 45 km in 25 minutes25\text{ minutes}25 minutes. How long does it take the train to travel 135 km?
50 minutes50\text{ minutes}50 minutes
65 minutes65\text{ minutes}65 minutes
75 minutes75\text{ minutes}75 minutes
100 minutes100\text{ minutes}100 minutes
50 exam-style questions on OCR GCSE Physics Motion. Each one has a worked solution and a mark scheme showing where the marks go.