SOLUTION: kimi travels 300 km to her home partly by train and partly by bus. She takes 4 hours, if she travelled 60 km by train and the remaining by bus. If she travelled 100 km by train and

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Question 970205: kimi travels 300 km to her home partly by train and partly by bus. She takes 4 hours, if she travelled 60 km by train and the remaining by bus. If she travelled 100 km by train and the remaining by bus, she would take 10 minutes longer. Find the average speed of the train and the bus.
Answer by josgarithmetic(39625) About Me  (Show Source):
You can put this solution on YOUR website!
________________rate____________time___________distance
train___________R_______________60%2FR_______60
bus_____________r______________240%2Fr_______240
Total____________________________4_____________300
_____________________________________________________________
_____________________________________________________________
***************Other Condition********************************
_____________rate_______________time____________distance
train________R_________________100%2FR__________100
bus__________r__________________200%2Fr_________200
Total___________________________4%261%2F6_____300

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



System of Equations:
system%2860%2FR%2B240%2Fr=4%2C100%2FR%2B200%2Fr=4%261%2F6%29
Solve the system.