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1. The distance between Party A and Party B is 540km. The passenger cars and freight cars leave from Party A and Party B at the same time. They meet in three hours. The passenger cars travel 100km per hour How many kilometers does the train travel per hour? 2. The school asked to type a 1200 word manuscript. Xiaoyu typed three eighths of the manuscript in six minutes, and Xiaodong typed 35% of the manuscript in five minutes?
1、540/3-100=80
2、1200*3/8/6=75
1200*0.35/5=84
Xiaodongkuai
The passenger car and the freight car leave from a and B at the same time. The passenger car travels 95 kilometers per hour, and the freight car 83 kilometers per hour. After 4 x 4 hours, the two cars meet, and a and B meet
How many kilometers away? Fast
We'll meet in four hours
（95+83）×4
=178×4
=712 km
A and B leave from AB and meet at 36km from the midpoint three hours later. It is known that the speed ratio of B and B is 3:2. How many kilometers is the distance between AB and B?
3 hours later, when they meet at 36 km from the midpoint, the difference between the speed of a and B is 36x2 △ 3 = 24 km / h,
The distance between the two places is equal to the sum of the speed of a and B multiplied by the encounter time: (24x3 + 24x2) X3 = 360km
When car a is 54 kilometers above the midpoint, car B is 36 kilometers away from the midpoint. It is known that the speed ratio of car a to car B is 3 to 2
When car a is 54 km above the midpoint, car B is 36 km away from the midpoint. It is known that the speed ratio of car a to car B is 3:2
432 km
Suppose the whole journey is x km
(54+x/2)/(x/2-36)=3/2
The solution of the equation is x = 432
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