If 0.45: x : : 4 : 2, then x is equal to
Choose the correct option
A) 0.225  B) 0.228  C) 0.254  D) 0.256  E) none

Rationale: "sol . ( x × 4 ) = ( 0.45 × 2 ) ⇒ x = 0.9 / 4 = 0.225 . answer a"
Answer: A