Question 490840
Distance = rate*time
Total distance covered by both boys must equal 100m
We need to find the time it takes for them to meet.
--> 5t + 7t = 100
--> 12t = 100
--> t = 8.33

Now find distance covered by boy running at 5 m/s
--> d = 5*(8.33)
--> d = 41.66