Solution :
The number of ways in which 4 novels can be selected = 6C4 = 15
The number of ways in which 1 dictionary can be selected = 3C1 = 3
Now, we have 5 places in which middle place is fixed.
∴ 4 novels can be arranged in 4! ways
\therefore total number of ways = 15 \times 4! \times 3
= 15 \times 24 \times 3
= 1080
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