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Previous Year Question (PYQs)
4
If all words (with or without meaning) formed using letters of “JAMIA” are arranged in dictionary order, what is the 50th word?
Solution
Letters: $A,A,I,J,M$. Total $= \dfrac{5!}{2!}=60$.
Starting with $A$: $24$ words ($1$–$24$).
Starting with $I$: $12$ words ($25$–$36$).
Starting with $J$: $12$ words ($37$–$48$).
Starting with $M$: $12$ words ($49$–$60$).
Within the $M$-block, 49th = $\text{MAAIJ}$, 50th = $\text{MAAJI}$.
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