A and B set out at the same time from a and B which are 2000 meters apart. They met each other four minutes later. It is known that B's speed is 5 meters per second, so we can find the speed of A

Let a's velocity be X. according to the equation, we get 240x + 5 × 240 = 2000, and the solution is x = 103m / s. answer: A's velocity is 103m / s

A and B each walk for a period of time, the time ratio is 6 to 7, the speed ratio is 4 to 5, and the distance ratio ()

The ratio of the distance they traveled (24:35)

A and B start from a to B at the same time. It takes 5 hours for a to finish the journey, and it takes 7 hours for B to finish it,

Time ratio of Party A and Party B: 5:7
The speed ratio of a and B: 1 / 5:1 / 7 = 7:5

1. A and B each walk for a certain distance. Their speed ratio is 3:4 and the distance ratio is 7:3. Then the time ratio they need is ()
3 2:1 Then the rectangle has at most () faces of equal size

1. A and B each walk for a certain distance. Their speed ratio is 3:4 and the distance ratio is 7:3. Then their time ratio is (28:9)
2. Round 0.5395 to 0.540
3. If the sum of edges of a cuboid is 120 cm, and the ratio of length to width is 2:2:1, then the cuboid has at most (4) faces of equal size

A and B set out at the same time from a and B which are 2000 meters apart. They met each other four minutes later. It is known that B's speed is 5 meters per second, so we can find the speed of A