The boys are together or they are not.
Three marbles with 2 colors can be aranged.
We could put as many as five all except one of the reds in any cup.
40 320 b regard the 2 boys as one unit and so there are 7 units to arrange.
Thus the actual total arrangements is.
2 ways so the required answer is 7.
10 080 c there are only 2 possibilities.
You keep your socks loose in a drawer.
Now with that out of the way let s think about how many different ways we can pick 4 colors.
For 12 distinct objects in a row there are 12.
That s factorial 12 11 10 2 1 different arrangements.
Suppose we are going to put them into three cups.
Example 15 in how many ways can 4 red 3 yellow and 2 green discs be arranged in a row if the discs of the same colour are indistinguishable.
9 suppose we have six marbles.
The only restriction is that the two red marbles can t be in the same cup.
1 slot 2 slot 3 slot and 4 slots.
In how many ways can at least 3 marbles be purple.
But now we have 3 greens and 3 greens can be arranged 6 ways permutations of 3 things one at a time.
3 blue marbles 2 red marbles and one green marble.
Notice that drawing two marbles at the same time is the same as drawing two marbles consecutively without replacing the first marble.
The boys can be arranged in 2.
Show that three purple marbles and three light blue marbles in two groups of three marbles each can be arranged in four combinations.
A black cup a white cup and a purple cup.
The total arrangements hasn t changed 120 because we have the same number of marbles.
How many ways can i arrange 10 red marbles 5 white marbles and 6 blue marbles in a row.
Since color are repeating so we use this formula 𝑛 𝑝1 𝑝2 𝑝3.
Drawing the first marble we have a chance probability of dfrac 4 10 dfrac 2 5 for it to be black as there are four black marbles and ten marbles in total.
A this is just 8 people being arranged in a row.
The same 4 colors we ve picked them in different orders.
No idea how to solve this.
Back to basics the basic idea of permutation is the different arrangements of distinct objects.
But here the 121 objects a.
Two with only one possible arrangement each and two with nine possible arrangements each.
A sample of 4 marbles is taken out of the bag.
Answer by edwin mccravy 18145 show source.
A bag contains 4 red marbles 3 blue marbles and 5 purple marbles.
So let s say we have 4 slots here.
And at first we care only about how many ways can we pick a color for that slot right there that first slot.
Any help would be much appreciated.