A) 25
B) 125
C) 250
D) 625
Correct Answer: B
Solution :
\[{{(0.04)}^{-1.5}}=\frac{1}{{{(0.04)}^{1.5}}}=\frac{1}{{{[{{(0.2)}^{2}}]}^{\frac{3}{2}}}}=\frac{1}{{{(0.2)}^{2\times \frac{3}{2}}}}=\frac{1}{{{(0.2)}^{3}}}\] \[=\frac{1}{0.008}=\frac{1000}{8}=12.5\]
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