The Gateway to Computer Science Excellence
First time here? Checkout the FAQ!
0 votes

How many distinguishable permutations of the letters in the work BANANA are there ?

(1) 720                                                              (2) 120

(3) 60                                                              (4) 360

asked in CBSE/UGC NET by (27 points)
retagged by | 455 views

1 Answer

0 votes
Distinguishable permutation means the letters won't be repeated. Here BANANA contains 6 letters in which N has been repeated twice and A has been repeated thrice. Hence number of distinguishable permutations = 6!/(3!2!) = 60
answered by Active (2.2k points)

Quick search syntax
tags tag:apple
author user:martin
title title:apple
content content:apple
exclude -tag:apple
force match +apple
views views:100
score score:10
answers answers:2
is accepted isaccepted:true
is closed isclosed:true

35,518 questions
42,792 answers
42,162 users