SOLUTION: a and b are two stations 390 km apart.a train starts from a at 10 am and travels towards b at 65kmph.another train starts from b at 11 am .and travel towards a at 35kmph.at what ti
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Question 768466: a and b are two stations 390 km apart.a train starts from a at 10 am and travels towards b at 65kmph.another train starts from b at 11 am .and travel towards a at 35kmph.at what time do they meet? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! a and b are two stations 390 km apart.a train starts from a at 10 am and travels towards b at 65kmph.another train starts from b at 11 am .and travel towards a at 35kmph.at what time do they meet?
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a to b DATA:
rate = 65 kph ; time = x hrs ; distance = 65x km
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b to a DATA:
rate = 35 kph ; time = x-1 hrs ; distance = 35(x-1) km
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Equation:
65x + 35x-35 = 390 km
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100x = 355 km
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x = 3.55 hrs = 3hrs 33 minutes
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Time they meet: 10:00 AM +3 hrs 33 minutes = 1:33 PM
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Cheers,
Stan H.
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