30% of a number is more than 60% of 50 by 30. Find the number?
Pick.
A) 120	B) 200	C) 180	D) 300	E) 140

Rationale: "( 30 / 100 ) * x – ( 60 / 100 ) * 50 = 30 2 / 7 x = 60 x = 200 answer : b"
Answer: B