NET JRF PART - A : Questions and Solutions : NET DEC-2016

NET JRF PART - A : Questions and Solutions:

NET DEC-2016

1.) In how many distinguishable ways can the letters of the word CHANCE be arranged? 

(a) 120 (b) 720 (c) 360 (d) 240 

Ans. : (c) 360 .

Solution: 

The total number of  letters be N.

The number of repeated letters be n.

Total number of distinguishable words made by the word “CHANCE” is :

N!/n! = 6!/2! = 720/2 = 360 .