question_answer

Jacob scored 8 marks more than what he did in the previous examination in which he had obtained 20 marks. Martin scored 16 marks more than he did in the previous examination in which he had scored 80 marks. Who had shown more improvement and by how much from other?

A)  Jacob, by 20%

B)  Martin, by 20%

C)  Jacob, by 25% 

D)  Martin, by 25%

E)  None of these