In the following question, two statements are numbered as I and II. On solving these statements, we get quantities I and II respectively. Solve both quantities and choose the correct option.

Quantity I​. A man covers a distance in 7 hours. He covers the first half with a speed of 6 km/h and second half with a speed of 8 km/h. What is the distance covered?

Quantity II. Two trains are travelling in the opposite direction having speed of 36 km/h and 54 km/h respectively. When they meet it is found that the faster train has covered 9 km more than the slower train. What was the initial distance between them?