20% of a number is more than 40% of 140 by 80. Find the number?
Choose the correct choice from the following answers:
A) 680	B) 620	C) 652	D) 520	E) 458

Rationale: "( 20 / 100 ) * x – ( 40 / 100 ) * 140 = 80 1 / 5 x = 136 x = 680 answer : a"
Answer: A