The square root of $$\left( {{{272}^2} - {{128}^2}} \right)$$ is = ?
A. 144
B. 200
C. 240
D. 256
Answer: Option C
Solution (By Examveda Team)
$$\eqalign{ & = \sqrt {\left( {{{272}^2} - {{128}^2}} \right)} \cr & = \sqrt {\left( {272 + 128} \right)\left( {272 - 128} \right)} \cr & = \sqrt {400 \times 144} \cr & = \sqrt {57600} \cr & = 240 \cr} $$This Question Belongs to Arithmetic Ability >> Square Root And Cube Root
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