When a car goes from a to B, it takes 25% of the whole journey in the first hour and 20% of the whole journey in the second hour. At this time, it is still 9 km away from the midpoint, and the distance between a and B is? Km

When a car goes from a to B, it takes 25% of the whole journey in the first hour and 20% of the whole journey in the second hour. At this time, it is still 9 km away from the midpoint, and the distance between a and B is? Km


9 ÷ (1 / 2-25% - 20%) = 180 km



A car from a to B completes a quarter of the whole journey in the first hour and 15% in the second hour, 9 kilometers from the midpoint
How many kilometers are the two places apart


Distance between the two places: 9 (1 / 2-1 / 4-15%) = 90 (km)