Question 970205
________________rate____________time___________distance
train___________R_______________{{{60/R}}}_______60
bus_____________r______________{{{240/r}}}_______240
Total____________________________4_____________300
_____________________________________________________________
_____________________________________________________________
***************Other Condition********************************
_____________rate_______________time____________distance
train________R_________________{{{100/R}}}__________100
bus__________r__________________{{{200/r}}}_________200
Total___________________________{{{4&1/6}}}_____300


Study the tabulated data and then understand this....




System of Equations:
{{{system(60/R+240/r=4,100/R+200/r=4&1/6)}}}
Solve the system.