A and B set out from a and B at the same time and went opposite each other. They met 400 meters away from the midpoint, When we meet, the distance of line a is three fifths of that of line B. how many kilometers are there between a and B?

A and B set out from a and B at the same time and went opposite each other. They met 400 meters away from the midpoint, When we meet, the distance of line a is three fifths of that of line B. how many kilometers are there between a and B?

Meet, a line of the whole journey
3 out of 5 (1 + 3 out of 5) = 3 out of 8
A. B distance between the two places
400 ÷ (1 / 2-3 / 8) = 3200m = 3.2km

Liangliang and Junjun went shopping. The sum of money they brought was 40.5 yuan more than Liangliang's and 9.8 yuan more than Junjun's. how much did Liangliang bring

40.5+9.8=50.3
50.3 yuan