Write the number of arrangements of the letters of the word BANANA in which two N’s come together.

Question

Philoid · Accepted Answer

As, it is required that two N’s come together, so, let us consider {NN} as a single object.

Thus we have, 5 objects {B}, {A}, {NN}, {A}, {A}, and there are 3 A's.

So, the number of arrangements in which the two N's are together is

= 20