Along a highway, there are electric poles on one side of the highway and telegraph poles on the other side. The electric poles are separated by 18 m and the telegraph poles are separated by 36 m. If an electric and a telegraph pole are both present at the point where the highway begins, after how much distance along the highway will they both be in front of each other again?
Nurul drove 74.9006 kms to visit her grandmother. When she reached her grandmother's house she noticed the car had used up 4.87 litres of petrol. How many kilometers did she travel per litre of petrol?