document.write( "Question 1124761: A tunnel has a length of 50 km. A car takes 20 minutes to travel between two ends of the tunnel.
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\n" ); document.write( "a. 2.5 km/h
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\n" ); document.write( "c. 150 km/h
\n" ); document.write( "d. 1000 km/h
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Algebra.Com's Answer #741067 by ikleyn(52788)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "To find the average speed, divide the distance by the time.\r\n" );
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document.write( "For your info:  20 minutes = \"1%2F3\" of an hour,  so the speed is  \"50%2F%28%281%2F3%29%29\" kilometers per hour.\r\n" );
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\n" ); document.write( "\n" ); document.write( "For the list of longest tunnels in the world,  see this Wikipedia article\r
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\n" ); document.write( "\n" ); document.write( "https://en.wikipedia.org/wiki/List_of_long_tunnels_by_type\r
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