If 50% of x equals the sum of y and 20, then what is the value of x–2y? Select:	A) 20	B) 40	C) 60	D) 80	E) 90

Rationale: explanation : given , 50 % of x equals the sum of y and 20 . = > ( 50 / 100 ) × x = y + 20 . = > x / 2 = y + 20 . = > x = 2 y + 40 . = > x – 2 y = 40 . answer : b
Answer: B