A) 1.25
B) 1.5
C) 25
D) 2.25
Correct Answer: C
Solution :
We have, \[\frac{1}{5}:\frac{1}{x}=\frac{1}{x}:\frac{1}{125}\] \[\Rightarrow \frac{1}{x}\times \frac{1}{x}=\frac{1}{5}\times \frac{1}{125}\Rightarrow \frac{1}{{{x}^{2}}}=\frac{1}{625}\] \[\Rightarrow {{x}^{2}}=625\Rightarrow x=25\].You need to login to perform this action.
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