document.write( "Question 71175: a small pully with a 6-inch diameter turns at 350 rpm. The small pulley drives a larger pulley which turns at 150 rpm. What is the diameter of the larger pulley?\r \n" );
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document.write( "Use a ratio. You know the larger pulley is going to have a larger diameter than 6.\r \n" );
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document.write( "150/6=350/x.\r \n" );
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document.write( "150x=2100\r \n" );
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document.write( "2100/150=14\r \n" );
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document.write( "x=14 inches \n" );
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