JEE MATHEMATICS MCQ: PERMUTATIONS

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Analyzing +4 | -1

We are required to form different words with the help of the letters 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 of words which begin with I and end with R, then

\frac{m_1}{m_2}

is given by

View answer and explanation

Correct option: B

Option B (30) is correct because the ratio of the number of words with I and N not together to the number of words starting with I and ending with R is 1800/60 = 30.

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