a student got 70% in one subject,80% in other.to get overall 75% how much he should get in third subject.	Select the correct option: A) 65 % B) 75 % C) 85 % D) 95 % E) 88 %

Rationale: already average of two subjects is ( 70 + 80 ) / 2 = 75 % to maintain the percentage at 75 % , he shouls get 75 % marks in third subject answer : b
Answer: B