Question
The value of $$\sqrt {\frac{{0.16}}{{0.4}}} $$ is = ?
Answer: Option C
$$\eqalign{
& = \sqrt {\frac{{0.16}}{{0.4}}} \cr
& = \sqrt {\frac{{0.16}}{{0.40}}} \cr
& = \sqrt {\frac{{16}}{{40}}} \cr
& = \sqrt {\frac{4}{{10}}} \cr
& = \sqrt {0.4} \cr
& = 0.63 \cr} $$
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$$\eqalign{
& = \sqrt {\frac{{0.16}}{{0.4}}} \cr
& = \sqrt {\frac{{0.16}}{{0.40}}} \cr
& = \sqrt {\frac{{16}}{{40}}} \cr
& = \sqrt {\frac{4}{{10}}} \cr
& = \sqrt {0.4} \cr
& = 0.63 \cr} $$
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