Six persons A,B,C,D,E & F went to solider cinima. There are six conseutive seats. A sits in one of the seats followed by B, followed by C and soon. If a taken one of the six seats , then B should sit adjacent to A. C should sit adjacent A or B. D should sit adjacent to A, B,or C and soon. How many possibilities are there?
RE: Six persons A,B,C,D,E & F went to solider cinima. ...
da answer is 32.i dunno hw to calculate it mathematically bt if i try to solve is by writing down n giving 1st 2nd 3rd till 6th position thn whn A is at 1st position - 1 possibility2nd------------ 5 possiblity3rd------------- 10 4th------------- 10 5th------------- 5 6th-------------- 1 so total is 1+5+10+10+5+1 32
RE: Six persons A,B,C,D,E & F went to solider cinima. There are six conseutive seats. A sitsin one of the seats followed by B, followed by C and soon. If a taken one of the six seats ,then B should sit adjacent to A. C should sit adjacent A or B. D should
lets make the possibilities:
If A sits first which is followed by B and the number of options or the ways in which B can sit around A is 2. i.e. AB BA
Now if C wants to sit adjacent to A or B it can sit in 4 ways i.e. 2 ways each for sitting near A or B.
Now again for D we have 8 ways i.e. 2 ways each to sit near A B orC.
Similarly we can see for E we have 16 ways.
thus F has total of around 32 ways to sit near A B C D by 32 ways.
