Answer:
They were 7.2 km apart originally
Explanation:
Let the original distance separating the two people be x
One person walked quarter of this distance + 0.6
=> x/4 + 0.6
The other person walked twice this distance
=> 2 (x /4 + 0.6) = x/2 + 1.2
Since they meet at a common point along the way, the sum of the distances covered = original distance
=> x/4 + 0.6 + x/2 + 1.2 = x
=> 3x/4 + 1.8 = x
=> x = 3x/4 + 1.8
=> x - 3x/4 = 1.8
=> 1x/4 = 1.8
=> x = 1.8 x 4 = 7.2 km
Check:
Person 1 walked 7.2/4 + 0.6 = 1.8+0.6 = 2.4
The other person walked twice as far = 2 x 2.4 = 4.8
2.4 + 4.8 = 7.2