document.write( "Question 542356: in how many ways can you answer the questions on an exam that consist of 10 multiple choice, each with 4 answer choices, followed by 8 true/false questions? \n" ); document.write( "
Algebra.Com's Answer #354545 by neatmath(302)![]() ![]() You can put this solution on YOUR website! You can use the \"multiplication principle of counting\" on this one: \r \n" ); document.write( "\n" ); document.write( "For each question, there is some \"possible\" number of answers. \r \n" ); document.write( "\n" ); document.write( "On the multiple choice questions, there are 4 possible answers. \r \n" ); document.write( "\n" ); document.write( "On the true/false questions, there are 2 possible answers. \r \n" ); document.write( "\n" ); document.write( "Now we can just multiply out all the possibilities for the 18 questions: \r \n" ); document.write( "\n" ); document.write( " \r \n" ); document.write( "\n" ); document.write( "This can be simplified as: \r \n" ); document.write( "\n" ); document.write( " \r \n" ); document.write( "\n" ); document.write( " \r \n" ); document.write( "\n" ); document.write( " \r \n" ); document.write( "\n" ); document.write( "There are 268,435,456 different ways in which one could answer these test questions! \r \n" ); document.write( "\n" ); document.write( "We could write out all the different possibilities, but it would take us years to do so. Scary, huh? \r \n" ); document.write( "\n" ); document.write( "I hope this helps! \n" ); document.write( " |