The square root of $$\frac{{{{\left( {0.75} \right)}^3}}}{{1 - 0.75}}$$ $${\text{ + }}$$$$\left[ {0.75 + {{\left( {0.75} \right)}^2} + 1} \right]$$ is = ?
A. 1
B. 2
C. 3
D. 4
Answer: Option B
Solution(By Examveda Team)
$$\frac{{{{\left( {0.75} \right)}^3}}}{{1 - 0.75}}$$ $${\text{ + }}$$$$\left[ {0.75 + {{\left( {0.75} \right)}^2} + 1} \right]$$$$ = \frac{{{{\left( {0.75} \right)}^2} \times 0.75}}{{0.25}}$$ $${\text{ + }}$$ $$\left[ {0.75 + 0.5625 + 1} \right]$$
$$ = 0.5625 \times 3 \,\, + $$ $$\left[ {0.75 + 0.5625 + 1} \right]$$
$$\eqalign{ & = 1.6875 + 2.3125 \cr & = 4 \cr} $$
Square root of 4 = 2
Related Questions on Square Root and Cube Root
The least perfect square, which is divisible by each of 21, 36 and 66 is:
A. 213444
B. 214344
C. 214434
D. 231444
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