document.write( "Question 954612: In how many ways can a group of 24 students be organized into groups of 2 if student number 3 and student number 22 must always be one of the pairs? How can this situation be expressed mathematically? \n" ); document.write( "
Algebra.Com's Answer #583061 by stanbon(75887)\"\" \"About 
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In how many ways can a group of 24 students be organized into groups of 2 if student number 3 and student number 22 must always be one of the pairs? How can this situation be expressed mathematically?
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\n" ); document.write( "Let those 2 form one of the pairs.
\n" ); document.write( "# of other pairs = 22C2 = (22*21)/2 = 11*21 = 231 other pairs
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\n" ); document.write( "Total number of pairs = 1 + 22C2
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\n" ); document.write( "cheers,
\n" ); document.write( "Stan H.
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