Question

Sia got 275 marks out of 400 in English, 656 out of 800 in maths and 765 out of 900 in science. Find:
a) her percentage score in all the subject s
b) her percentage score as a whole in all the three examinations

Answer 1

Total marks in English = 400
marks scored = 275

Total marks in math = 800
marks scored = 656

Total marks in Science = 900
marks scored = 765

% in English = 275/400 ×100 = 68.75%

% in maths = 656/800× 100 = 82%

% in science = 764/900×100 = 85%

% as total =
(68.75%+82%+85%)/3
= 78.5%