Mark and Jaymee are 20 m apart. If they start running towards each other, Mark at 5.5 m/s and Jaymee at 4.5 m/s, what distance has mark covered by the time he meets jaymee?

Question

parthkohli · Answer

If Mark meets at x, then Jaymee would be at 20 - x.
Time = Distance/Speed
Time taken by mark to cover x km = x/5.5
----By Jaymee = (20 - x)/4.5
The time that they'll meet at is equal.
x/5.5 = 20-x/4.5
4.5x = 5.5(20 - x)
4.5x = 110 - 5.5x
10x = 110
x = 11

Mark has covered x meters = 11 meters
Jaymee has covered 20 - x meters = 20 - 11 meters= 9 meters

anonymous · Answer

|dw:1338405808082:dw|
left distant=5.5 m/s * t
right distant= 4.5 m/s *t
left +right =20
so
4.5t+5.5t=20
t=2

mark is the left one =2*5.5=11m

anonymous · Answer

Woahhhh. Hahaha. Genius XD Thanks!

@IMMORTALS Hahaha, thanks for the effort :) You're a genius too! XD Thanks! :)