document.write( "Question 279596: Pablo can drive 5 times as fast as Oscar can ride his bicycle. If it takes Oscar 4 hours longer than Pablo to travel 90 miles, how fast can Oscar ride his bicycle? \n" ); document.write( "
Algebra.Com's Answer #854170 by ikleyn(53742)\"\" \"About 
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\n" ); document.write( "Pablo can drive 5 times as fast as Oscar can ride his bicycle. If it takes Oscar 4 hours longer than Pablo
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\n" ); document.write( "\n" ); document.write( "        The solution and the answer in the post by @mananth both are incorrect due to arithmetic errors.\r
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document.write( "Let Oscar' speed be x miles per hour\r\n" );
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document.write( "Pablo's speed = 5x miles per hour\r\n" );
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document.write( "t= distance /rate\r\n" );
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document.write( "\"90%2Fx\" = Oscar's time\r\n" );
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document.write( "Pablo's time = \"90%2F5x\"\r\n" );
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document.write( "Time equation\r\n" );
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document.write( "    \"90%2Fx\" + 4 = \"90%2F5x\"\r\n" );
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document.write( "Simplify and find x\r\n" );
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document.write( "    \"90%2Fx\" - \"90%2F5x\" = 4\r\n" );
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document.write( "    \"%2890%2Fx%29%2A%281-1%2F5%29\" = 4\r\n" );
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document.write( "    \"%2890%2Fx%29%2A%284%2F5%29\" = 4\r\n" );
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document.write( "    \"90%2Fx\" = 5\r\n" );
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document.write( "    x = \"90%2F5\" = 18.\r\n" );
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document.write( "ANSWER.  Oscar' speed riding bicycle is 18 miles per hour.\r\n" );
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