<PRE><B>Question 458524</B>
3/2(x+x+4)=60
3(2x+4)=120
2x+4=40
2x=36
x=18
Mark rode at 18 kph, and Andrew rode at 22 kph
---------------------------------
x/66=x/90+2/3
x/22=x/30+2
30x=22x+1320
8x=1320
x=165 kilometers
165/66=2.5
165/90+2/3=165/90+60/90=225/90=2.5</PRE>