1. ## permutation and combination

here is the question: eight people sit in a minibus four on the sunny side and four on the shady side. if 2 people want to sit on opposite sides to each other and another 2 people want to sit on the shady side in how many ways can this be done ??

2. ## Re: permutation and combination

here is the question: eight people sit in a minibus four on the sunny side and four on the shady side. if 2 people want to sit on opposite sides to each other and another 2 people want to sit on the shady side in how many ways can this be done ??
I assume that there only eight seats. So there only $\displaystyle 8$ ways to seat the couple opposite each other. WHY?

There are then $\displaystyle 3\cdot 2$ ways to seat the other two people on the sunny side. Can you explain that?

How many seats remain and how many ways can they be occupied?

3. ## Re: permutation and combination

how will u do it then?? that's the question

4. ## Re: permutation and combination

how will u do it then?? that's the question