document.write( "Question 1012521: This is all about combination.\r
\n" );
document.write( "\n" );
document.write( "1. In how many ways can 6 students be seated in a row of 6 seats if 2 of the students insist on sitting beside each other?\r
\n" );
document.write( "\n" );
document.write( "2. In how many ways can you select 7 books out of 10 and then arrange these books on a shelf if there is space enough for only 5 books? \n" );
document.write( "
Algebra.Com's Answer #628485 by psbhowmick(878)![]() ![]() You can put this solution on YOUR website! 1. This is same as no. of ways in which 5 students can be seated in a row of 5 seats multiplied by 2.\r \n" ); document.write( "\n" ); document.write( "So the answer is 5! x 2 = 240.\r \n" ); document.write( "\n" ); document.write( "2. Try yourself. If you can't find the answer then contact me. \n" ); document.write( " |