If 10power2y=25, the 10power-y equals:  Choose the correct choice from the following options:
A) -1/5  B) 1/625  C) 1/50  D) 1/25  E) 1/5
10power2y=25, (10powerY)power2= 5power2, 10powerY= 5, 1/10powerY=1/5, 10power-Y=1/5, correct answer will be (1/5)
<result>E</result>
If 10power2y=25, the 10power-y equals: