From A to B, A takes 10 minutes, B takes 12 minutes, and the speed ratio of A and B is

The distance is considered as unit 1

The speed of A is 1 10

B's velocity is 1 12

Then the velocity ratio of A and B is 1 10:1 12=12:10=6:515:x=1 8:3 4

1/8x=3/4x15

x=3/4x15x8

x=901/4:1/12=x/

1/12x=1/

x=1/x=

6 to 5, which can be found by v(velocity) = s t.

15 x is equal to 1/8 to 3/4 = 45 = x = 90 x 8

1/4 is equal to 1/12 x = 3 = 10x x =

15 to x is equal to 1/8 to 3/4*****" x = 90

1/4 is equal to 1/12 x ***** x = 30

Method 1: 12:10=6:5

Method 2: Let the distance be s, the speed of A is s 10, and the speed of B is s 12, then the velocity ratio of A and B is (s 10) :(s 12) = 6:5

From A to B, A takes 10 minutes, B takes 12 minutes, and the speed ratio of A and B is 6:515 to X is equal to 1/8 to 3/4

1/8x=15×3/4

1/8x=45/4

x = 1/904 to 1/12 equals x out of 12

1/12x=1/4×

1/12x=1/40

x=3/8

Let the distance be y, the speed of A is x1, and the speed of B is x2, and the equation comes out 6 to 5

1 12) :( 1 8), 1 12 : 1 8 ,2: Buzao 3; There is no balance.

Answer: The velocity ratio of A and B is 2:3;

Therefore, the answer is: 2:3

Because the distance is the same ridge tour, and the pseudo-kamino is both s, so the speed of A is S 20, and the speed of B is S 15. So the velocity ratio of A and B is s 20:s 15=3:4.

The velocity ratio of A and B is 1 7:1 8 = 8:7

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The distance is equal, and the speed is inversely proportional to time.

A velocity B velocity = 60 40 = 3 2

Method 1: Seek directly. If the distance from A to B is 100 km, then A's velocity is 100 5 = 20 km, and the speed of Hour Pants and B's speed is 100 4 = 25 km, and the speed ratio of A and B = 20:

25 = 4:5Method 2: When the proportional method has a certain distance, the speed is inversely proportional to the time, and the time ratio = 5:

4, so speed.

A's velocity is 1 4, B's velocity is 1 5, and A is 125% of B's