JEE MATHEMATICS MCQ: PERMUTATIONS

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Analyzing +4 | -1

If number of ways of arranging letters aaaabbbbccdd in a line so that there should be at least one b in between two a’s is

k,

then the value of

\left| {15000 - k} \right|

View answer and explanation

Correct option: A

150

Option A (150) is correct because the number of arrangements is calculated by considering the possible arrangements with at least one 'b' between two 'a's and then subtracting from the total arrangements.

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