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Question : If $(\frac{1}{5})^{3y}=0.008$, then the value of $(0.25)^{y}$ is:

Option 1: 0.25

Option 2: 6.25

Option 3: 2.5

Option 4: 53


Team Careers360 10th Jan, 2024
Answer (1)
Team Careers360 16th Jan, 2024

Correct Answer: 0.25


Solution : $(\frac{1}{5})^{3y}=0.008$
⇒ $0.2^{3y}=0.2^3$
⇒ $3y=3$
⇒ $y=1$
$\therefore (0.25)^{y}=(0.25)^{1}=0.25$
Hence, the correct answer is 0.25.

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