50% of a number is more than 20% of 650 by 190. Find the number?
Choose the most appropriate option
A) 640 B) 278 C) 800 D) 267 E) 121

Rationale: "( 50 / 100 ) * x â € “ ( 20 / 100 ) * 650 = 190 1 / 2 x = 320 x = 640 answer : a"
Answer: A