Latest exam Aptitude Question SOLUTION: The letter of the word LABOUR are permuted in all possible ways and the words thus formed are arranged as in a dictionary. What is the rank of the word LABOUR? A. 275 B. 251 C

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(#M40020688) EXAM question permutation Keep an EYE

The letter of the word LABOUR are permuted in all possible ways and the words thus formed are arranged as in a dictionary. What is the rank of the word LABOUR?

A.

275

B.

251

C.

240

D.

242

Asked In exam MAN (10 years ago)

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Venkatesh  (5 years ago)

the ans is ---> 242

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Rajendra Patidar  (5 years ago)

The order of the dictionary form is ------ ABLORU.
start with A , remaining letters ---- in 5! ways.
B in the remaining letters ----------- 5! ways.
With L in the beginning, the first word will be LABORU, the second will be LABOUR.
Hence, the rank of the word LABOUR is,
5!+5!+2 = 120 +120 +2 =242.

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