document.write( "Question 1024531: a field is 90 m by 70 m.A man walks round in at the rate of 4 km. per hour. What time will he take in making 5 rounds? \n" ); document.write( "

Algebra.Com's Answer #639932 by josmiceli(19441) $\"\"$ $\"About$

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The perimeter is:
\n" ); document.write( " $\"+P+=+2%2A90+%2B+2%2A70+\"$
\n" ); document.write( " $\"+P+=+180+%2B+140+\"$
\n" ); document.write( " $\"+P+=+320+\"$ m
\n" ); document.write( "-----------------
\n" ); document.write( "His speed is:
\n" ); document.write( " $\"+4000+\"$ m/hr
\n" ); document.write( "----------------
\n" ); document.write( "5 rounds is:
\n" ); document.write( " $\"+5%2A320+=+1600+\"$ m
\n" ); document.write( "--------------------
\n" ); document.write( " $\"+d+=+r%2At+\"$
\n" ); document.write( " $\"+t+=+d%2Fr+\"$
\n" ); document.write( " $\"+t+=+1600+%2F+4000+\"$
\n" ); document.write( " $\"+t+=+.4+\"$ hrs
\n" ); document.write( "Convert to minutes:
\n" ); document.write( " $\"+.4%2A60+=+24+\"$
\n" ); document.write( "He takes 24 min to make 5 rounds \n" ); document.write( "

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