Q. 55.0( 1 Vote )

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

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

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