The sum of their speeds is (30 km)/(3 hr) = 10 kph.

The difference of their speeds is 2 kph (from the problem statement).

This has solutions like any other "sum and difference" problem.

The faster runner is running (10 + 2)/2 =

The slower runner is running (10 - 2)/2 =

The difference of their speeds is 2 kph (from the problem statement).

This has solutions like any other "sum and difference" problem.

The faster runner is running (10 + 2)/2 =

**6 kph**.The slower runner is running (10 - 2)/2 =

**4 kph**.