The distance between a and B is 3 kilometers. A and B meet 20 minutes later. Half an hour later, the rest of a's journey is twice that of B's

The distance between a and B is 3 kilometers. A and B meet 20 minutes later. Half an hour later, the rest of a's journey is twice that of B's

A speed x, B speed y
20（x+y）=3
3-30X=2*(3-30y)
x=1/15 km/min
y=1/12 km/min

The distance between a and B is 3 kilometers. A starts from a and walks to B. B starts from a and walks to a. the two start at the same time and meet 20 minutes later
The remaining distance of a is twice that of B. find the speed of two persons. Solve the quadratic equation of two variables

Let a x b y (km / h)
1/3（X+Y）=3
(3-0.5X)=(3-0.5Y)*2

A. The distance between two places is 36 kilometers. A starts from a and walks to B, B starts from B and walks to A. two people start at the same time and meet each other 4 hours later. After 6 hours, the rest distance of a is twice that of B. find the speed of two people

Let a's velocity be x km / h and B's velocity be y km / h. from the question meaning: 4 (x + y) = 36 (36-6x) = 2 (36-6y), the solution is: x = 4Y = 5 A: A's velocity is 4 km / h and B's velocity is 5 km / h