A question is followed by 2 statements. Study the following statements carefully and state whether they are sufficient to answer the question.

A student appears in an examination where his marks in biology is 20 marks more than what he got in Physics. Find his marks in biology?

Statement I – Average marks of Physics and Chemistry is 71.5. The ratio of marks of Practical and Theory in Physics is 6 : 5 and in chemistry, it is 15 : 7.

Statement II –Ratio of marks obtained in the theory exam of physics and chemistry is 1 : 2. The ratio of marks of Physics and Chemistry is 5 : 8.