The distance between a and B is 180km. A and B travel from a to B at the same time. A travels 20km per hour, B travels 30km per hour. B immediately returns to B, and travels 40km per hour when it returns. How far is B from a to meet a

The distance between a and B is 180km. A and B travel from a to B at the same time. A travels 20km per hour, B travels 30km per hour. B immediately returns to B, and travels 40km per hour when it returns. How far is B from a to meet a


Time for vehicle B to arrive at site B: 180 △ 30 = 6 hours
Car a runs for 6 hours: 20 × 6 = 120 km
At this time, the distance between the two cars is 180-120 = 60 km
The time of meeting car a when B returns: 60 ÷ (20 + 40) = 1 hour
Therefore, the distance between car B and car a when they meet is 180-40 × 1 = 140 km



The distance between the two places is 200 km. A drives 30 km per hour. B drives 20 km per hour. The two cars meet in a few hours


It will take four hours



A and B start from two places at the same time and travel in opposite directions. When they meet, car a travels 20% more than car B. car B travels 30 meters less than car A. how many kilometers are there between two places
When they meet, car a travels 20% more than car B, and car B travels 30 meters less than car A. how many kilometers are there between the two places?
The formula, the steps, the answer


A is 20% more than B by 30 meters, so B walks 30 / 20% = 150 meters, a walks 180 meters, so the distance between the two places is 150 meters + 180 meters = 330 meters = 0.33 kilometers