A number increased by 20% gives 1080. The number is?	Pick one:
A) 800	B) 700	C) 500	D) 900	E) 600

Rationale: "formula = total = 100 % , increase = ` ` + ' ' decrease = ` ` - ' ' a number means = 100 % that same number increased by 20 % = 120 % 120 % - - - - - - - > 1080 ( 120 ã — 9 = 1080 ) 100 % - - - - - - - > 900 ( 100 ã — 9 = 900 ) option ' d '"
Answer: D