Question 1
Train A at 69 km/h and Train B at 70 km/h start from stations 451 km apart and move towards each other. How long will they take to meet?
Step-by-step:
1. Relative speed when moving towards each other = 69 + 70 = 139 km/h
2. Time = Distance / Relative Speed = 451 / 139 = 3.2 hours
1. Relative speed when moving towards each other = 69 + 70 = 139 km/h
2. Time = Distance / Relative Speed = 451 / 139 = 3.2 hours