Michael scores 70% more marks in Physics than in Chemistry. However, Chemistry paper was for 100 marks and
Physics for 300 marks. If Michael gets total of 162 marks in both subjects, what was his percentage in Physics?
Answers
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15
162 marks of 100
162 marks of 300
162/300×100%
=54%
Answered by
3
Given:
Total marks of chemistry paper = 100
Total marks of physics paper = 300
Total marks that Michael got = 162
Michael score 70% more marks in Physics than in Chemistry.
To find:
His percentage in physics.
Solution:
Let the marks scored in Chemistry be x.
Therefore marks scored in Physics = 162- x
Since the marks scored in Physics is 70% more than in chemistry:
162-x - x = 70/100 *x
162 - 2x = 0.7x
162 = 2.7x
x = 60
Marks scored in Physics = 162 - x = 162 - 60 = 102
Therefore the marks scored in Physics will be 102.
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