Question

give the answer
in given options​

Answer 1

Answer:

c) 25

Step-by-step explanation:

1 / 5 : 1 / x = 1 / x : 1 / 125

=> (1 / 5) / (1/x) = (1/x) / (1/125)

=> 1/5 X 1/125 = 1/x²

=> 1/625 = 1/x²

=> 625 = x²

=> x = ± 25

∴, x = 25