Question

In how many ways can the letters in mmmnnnppqq can be arranged with two n's together?

Answer 1

Can't understand ur question dude

Answer 2

Answer: There are 1680 ways that the letters can be arranged with 2 n's together.

Step-by-step explanation:

Since we have given that

mmmnnnppqq

2 n's are together consider it as 1 unit.

Remaining letters would be

mmmppqq

Number of units = 7

Total number of units = 7+ 1 =8

There are 3 m's, 2p's, and 2q's

So, Number of ways would be

$\dfrac{8!}{3!\times 2!\times 2!}\times \dfrac{2!}{2!}\\\\=1680$

Hence, there are 1680 ways that the letters can be arranged with 2 n's together.