If 0.25 : x : : 2 : 6, then x is equal to	Select the correct option.
A) 0.65
B) 0.25
C) 0.75
D) 0.85
E) none

Rationale: "sol . ( x × 2 ) = ( 0.25 × 6 ) ⇒ x = 1.5 / 2 = 0.75 . answer c"
Answer: C