document.write( "Question 757506: A man walks at 5kmph for 6hr and at 4km/h for 12hr. His average speed is? \n" ); document.write( "

Algebra.Com's Answer #460921 by josmiceli(19441) $\"\"$ $\"About$

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Average speed is always ( total distance traveled ) / ( total time )
\n" ); document.write( " $\"+5%2A6+=+30+\"$ km
\n" ); document.write( " $\"+4%2A12+-+48+\"$ km
\n" ); document.write( "----------------
\n" ); document.write( " $\"+6%2B+4+=+10+\"$ hrs
\n" ); document.write( "Ave speed = $\"+%28+30+%2B+48+%29+%2F+10+\"$
\n" ); document.write( "Ave speed = $\"+78%2F10+\"$
\n" ); document.write( "Ave speed is 7.8 km/hr
\n" ); document.write( " \n" ); document.write( "

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