[JEE Main 2009] From $6$ novels and $3$ dictionaries, $4$ novels and $1$ dictionary are arranged in a row with the dictionary in the middle. The number of arrangements is
From $6$ novels and $3$ dictionaries, $4$ novels and $1$ dictionary are arranged in a row with the dictionary in the middle. The number of arrangements is
(a) at least $500$ but $<750$
(b) at least $750$ but $<1000$
(c) at least $1000$
(d) less than $500$
1 Answer
VAVidaara Admin
✓ Vidaara Team
✓ Accepted
· 1mo ago
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Correct answer: (c) at least $1000$
$\binom64\cdot3\cdot4!=15\cdot3\cdot24=1080\ge1000$.
JEE Main 2009 · Permutations and Combinations — verified solution by the Vidaara Team.
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