20% of a number is more than 30% of 120 by 80. Find the number?	Pick
A) 520 B) 560 C) 580 D) 620 E) 610

Rationale: ( 20 / 100 ) * x – ( 30 / 100 ) * 120 = 80 1 / 5 x = 116 x = 580 answer : c
Answer: C