A student gets 50% in one subject, 60% in the other. To get an overall of 60% how much should get in third subject.	Choose the correct choice from the following options:
A) 75 %
B) 70 %
C) 45 %
D) 55 %
E) 65 %

Rationale: "let the 3 rd subject % = x 50 + 60 + x = 3 * 60 110 + x = 180 x = 180 - 110 = 70 answer : b"
Answer: B