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Quantitative Aptitude (CPO)

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If $\left ( 2x-5 \right )^{3}+\left ( x-4 \right )^{3}+\left ( x-11 \right )^{3}=3\left ( 2x-5 \right )\left ( x-4 \right )\left ( x-11 \right )$ then what is the value of x ?

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SSC CPO 14th-March-2019-Shift-2

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Explanation:

If we go by options one by one. Let us take the value as 5.
RHS =5³+ 1³- 6³= 125 + 1 - 216 = -90
and
LHS 3 x5x1x-6=-90
So, A is correct choice.

By: santosh

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