If 25% of x is 15 less than 15% of 1600, then x is? Select the correct option: A) 872 B) 738 C) 900 D) 840 E) 83

Rationale: "25 % of x = x / 4 ; 15 % of 1600 = 15 / 100 * 1600 = 240 given that , x / 4 = 240 - 15 = > x / 4 = 225 = > x = 900 . answer : c"
Answer: C