Quantitative Aptitude Ques 1795

Question: The number of ways, the letters of words of ‘MATHEMATICS’ be arranged is

Options:

A) 4989600

B) 502646

C) 424690

D) 824213

Show Answer

Answer:

Correct Answer: A

Solution:

  • The word ‘MATHEMATICS’ consists of 11 letters out of which A, M and T are each repeated twice, then by the 4th point of useful relation of permutation, we have $ P=\frac{n!}{x!y!z!}=\frac{11!}{2!2!2!}=4989600 $
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