document.write( "Question 293380: A train running at the speed of 90 km/hr crosses a platform of length 160 m in 10 seconds. What is the length of the train (in metres)?\r
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document.write( "(a) 60 (b) 90 (c) 150 (d) 140 (e) 40\r
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Algebra.Com's Answer #211796 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! A train running at the speed of 90 km/hr crosses a platform of length 160 m in 10 seconds. What is the length of the train (in meters)? \n" ); document.write( "------ \n" ); document.write( "Convert 90km/hr to meter per sec. \n" ); document.write( "--- \n" ); document.write( "90km/h(1h/3600sec)(1000m/1km) = 25meter/sec \n" ); document.write( "--- \n" ); document.write( "Find distance the train travels in 10 seconds. \n" ); document.write( "------------- \n" ); document.write( "= 250 meter/10sec \n" ); document.write( "---- \n" ); document.write( "Find length of train: \n" ); document.write( "length + 160 meters = 250 meters \n" ); document.write( "The train = 250-160 = 90 meters long \n" ); document.write( "===================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H/\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "(a) 60 (b) 90 (c) 150 (d) 140 (e) 40 \n" ); document.write( " |