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 Oxford AQA IGCSE Maths Standard Form with exam-style questions for Core and Extended tier. 23 questions, matched to the Oxford AQA IGCSE Maths (9260) specification and written in Paper 1 and Paper 2 (Core: 1C and 2C; Extension: 1E and 2E) 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.