# How many ways can 7 beads be strung into necklace?

Contents

2520. 5040.

## How many ways can 5 beads be strung on a necklace?

One is clockwise, another is anticlockwise. Here in both directions we will get the same arrangement. So, we have to divide 24 by 2. Therefore the total number of different ways of arranging 5 beads is 242=12 .

## How many ways 8 different beads can be arranged to form a necklace?

The number of ways in which 8 different beads be strung on a necklace is. 2500. 2520.

## How many necklaces can be made using 7 beads of which 5 are identical red beads and 2 are identical blue beads?

= 720/(120*2) = 3. So we can have 3 different necklaces.

## How many arrangements of beads are possible in a bracelet if there are 6 different designs of beads?

Since there are 6! linear arrangements of six distinct beads, the number of distinguishable circular arrangements is 6! 6=5!

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## How many different necklaces can be assembled if we are to use 5 beads of different colors?

This is given in GRE test. The correct answer is 2952 .

## How many necklaces can be formed with 6 white and 5 red beads if each necklace is unique how many can be formed?

5! but correct answer is 21.

## How many different change can be made using 5 different Coloured beads?

So there can be 12 different arrangements.

## How many ways 10 different beads can be arranged to form a necklace?

Answer: This is called a cyclic permutation. The formula for this is simply (n-1)!/2, since all the beads are identical. Hence, the answer is 9!/2 = 362880/2 = 181440….

## How many ways can 6 differently Coloured beads be threaded on a string?

Assuming that the beads are different, the first bead can be picked in 6 ways. Then the second bead can be picked in 5 ways. And the third bead can be picked in 4 ways, etc. Multiplying these together, we get 6*5*4*3*2*1 = 720 ways.