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The distance between a and B is 960 kilometers. Car a travels 80 kilometers per hour and car B 120 kilometers per hour 60 km away
There are two cases
1. Before the meeting: (960-60) / (120 + 80) = 4.5 hours
2. After meeting: (960 + 60) / (120 + 80) = 5.1 hours
The distance between a and B is 960 kilometers. Car a travels 80 kilometers per hour and car B 120 kilometers per hour. Car a goes ahead for two hours
It will take a few hours for the two cars to meet
（960-80×2）÷（80+120）
=800÷200
=4 hours
The distance between a and B is 960 kilometers. Car a travels 80 kilometers per hour, and car B travels 120 kilometers per hour
How many kilometers are there
960 ÷ (120 + 80) = 4.8 hours
Line a: 80 × 4.8 = 384 km
Line B: 120 × 4.8 = 576 km
Car a and car B start from a and B at the same time and travel in opposite directions. Car a travels 80 kilometers per hour and car B 70 kilometers per hour. When car a reaches 25 o'clock of the whole journey, car B is 36 kilometers away from the midpoint. How many kilometers is the distance between a and B?
Suppose the distance between a and B is x km. & nbsp; & nbsp; 25X △ 80 = (12x-36) △ 70 & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; X200 = X140 − 3670x140 − X200 = 1835 & nbsp; & nbsp; & nbsp; 3x1400 = 1835 & nbsp; & nbsp; 3x × 35 = 1400 × 18105x △ 105 = 2520
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