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The value of $$\frac{{27 \times {{\left( {0.25} \right)}^3} + 125{{\left( {0.05} \right)}^3}}}{{{{\left( {0.75} \right)}^2} - 0.25 \times 0.5}}$$ is:
Answer & Solution
Correct Answer:
Option
A
$$\eqalign{
& \frac{{27 \times {{\left( {0.25} \right)}^3} + 125{{\left( {0.05} \right)}^3}}}{{{{\left( {0.75} \right)}^2} - 0.25 \times 0.5}} \cr
& = \frac{{\frac{{27 \times 25 \times 25 \times 25}}{{1000000}} + \frac{{125 \times 5 \times 5 \times 5}}{{1000000}}}}{{\frac{{75 \times 75}}{{10000}} - \frac{{25 \times 5}}{{1000}}}} \cr
& = \frac{{\frac{{27 \times 25 \times 25 \times 25}}{{1000}} + \frac{{125 \times 5 \times 5 \times 5}}{{1000}}}}{{\frac{{75 \times 75 - 25 \times 5 \times 10}}{{10}}}} \cr
& = \frac{{\frac{{27}}{8} + \frac{1}{8}}}{{\frac{{45 - 10}}{{10}}}} \cr
& = \frac{{280}}{{8 \times 35}} \cr
& = 1 \cr} $$
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