The distance between Earth and Mars is 78 million kilometres. The speed of light is 3 × 105 km/s
Calculate the time, in seconds, it takes for light to travel from Earth to Mars. Give your answer in standard form.
Practise CIE IGCSE Maths Standard Form with exam-style questions for Core and Extended tier. 23 questions, matched to the CIE IGCSE Maths (0580) specification and written in Paper 1 and Paper 3 (Core) or Paper 2 and Paper 4 (Extended) style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.