document.write( "Question 12369: a teacher has a set of 12 problems to use on a math exam. The teacher makes different versions of the exam by putting 10 questions on each exam. How many different exams can the teacher make?
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Algebra.Com's Answer #6314 by kusha(21)![]() ![]() ![]() You can put this solution on YOUR website! we can make selections of 10 out of 12 in c(12,10) ways\r \n" ); document.write( "\n" ); document.write( "12!/10!2! = 66 ways \n" ); document.write( " so he can make 66 papers \n" ); document.write( " |