Question
Mathematics Question on Permutations
The letters of the word "LABOUR" are permuted in all possible ways and the words thus formed are arranged as in a dictionary the rank of the word "LABOUR" is
A
240
B
241
C
242
D
243
Answer
242
Explanation
Solution
ABLORU: LABOUR | 2.5!+0.41+0.3!+0.2!+1.1!+1 = 242