If a denotes the number of permutations of \( x+2 \) things taken a...

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If a denotes the number of permutations of \( x+2 \) things taken all at a time, \( b \) the number of permutations of \( x \) things taken \(11\) at a time and \( \mathrm{c} \) the number of permutations of \( (x-11) \) things taken all at a time such that \( \mathrm{a}=182 \mathrm{~bc} \), then value of \( x \) is
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