Question 199038
Let  b = bus  time,  abd  Let  t = train  time
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distance  =  velocity  *  time
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40 * b  + 60 * t = 300
and  b + t = 5.5,,,,, or  b = 5.5 -t
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40 ( 5.5 -t) + 60 t  = 300
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220 -40t +60t = 300
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20t = 80
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t=4  hrs
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b= 5.5-4 = 1.5 hrs
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check 
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40(1.5) + 60(4) = 300
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60 + 240 = 300,,,,,ok