document.write( "Question 1146100: A boat traveled 260 miles downstream and back. The trip downstream took 13 hours. he trip back took 26 hours. Find the speed of the boat in still water and the speed of the current \n" ); document.write( "

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A boat traveled 260 miles downstream and back. The trip downstream took 13 hours. he trip back took 26 hours. Find the speed of the boat in still water and the speed of the current
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Let speed of boat in still water and current speed be S, and C, respectively
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document.write( "Then for the DOWNSTREAM-TRIP, we get the following AVERAGE SPEED equation: 
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document.write( "And, for the UPSTREAM-TRIP, we get the following AVERAGE SPEED equation: 
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document.write( "2S = 30 ------ Adding eqs (ii) & (i)
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document.write( "S, or speed of boat in still water = \r
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document.write( "15 + C = 20 ------- Substituting 15 for S in eq (i)
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document.write( "C, or speed of current =  \n" );
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