The given pie chart shows the marks obtained in an examination by a student (in degrees). Observe the pie chart and answer the question that follows.

If the total marks are 720, then the difference between the total marks obtained in Physics, Maths and Physical education and the total marks in Chemistry, Biology, and English out of the total marks is:

80

Total marks obtained in Physics, Maths and Physical education = 70º + 80º + 50º

= 200º

Total marks in Chemistry, Biology, and English = 45º + 55º + 60º = 160º

Total marks = 720

Required difference = \(\frac{200º-160º }{360º}\) × 720

= \(\frac{40º}{360º}\) × 720

= 80