how many combination can we made word 'assassination' if all 's' alphabet are together
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The word ASSASSINATION has 4S,3A,2I,2N,T,O,4S are together.
This is considered as one block as 1 letter
Now we have 3A,2I,2N,4S,T,O
⇒10!3!2!2!=10×9×8×7×6×5×4×3×2×1(3×2×1)×(2×1)×(2×1)
⇒10×9×8×7×5×3×2
⇒151200
so 151200 is the correct answer.
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