Explanation:

- Train 1 travels from A to B at 42 km/hr.

- Train 2 moves from B to A at 53 km/hr.

- The distance between A and B is 950 km.

- To find where they meet, calculate their combined speed: 42 km/hr + 53 km/hr = 95 km/hr.

- Time to meet: 950 km ÷ 95 km/hr = 10 hours.

- In 10 hours, Train 1 travels: 42 km/hr × 10 hours = 420 km.

Therefore, the trains cross at a distance of 420 km from A.

Option 1: 420 km is correct.