Question

Milla and Luka are 3 kilometers apart and walking toward each other. Milla's average speed is 5 kilometers per hour and Luka's is 4 kilometers per hour.

Answer 1

the correct answer is B.

5t + 4t = 3

Answer 2

Milla's speed is faster and Luka's speed is slower. when the both of them are together, in a line it should look like this:
------------------------------------------------------------o--------------------------------------------The one with the o is when they would get together again. see that the o is not in the middle. That's what happens when Milla's speed is faster and Luka's speed is slower