really you have more ok what
This is a problem involving permutation, in which, order matters. Since these four beads to be together, we consider it 1 group. So, in essence we have 7 elements to work with, we have 6 individual beads, and 1 group of 4 that have to be together.
In order to do this, let us use the formula for permutation,
In order to order the 7 elements, we will have to get the value of as we are arranging 7 out of 7. And don't forget that we can also arrange the four particular beads in the group, that is computed as .
Therefore, there are 120,960 ways to arrange the ten beads.