We are required to form different words ...

We are required to form different words with the help of the word INTEGER. Let `m_1` be the number of words in which I and N are never together and `m_2` be the number or words which begin with and I and end with R, then `m_1/m_2`

A

30

B

60

C

90

D

180

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The correct Answer is:

A

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