the total marks obtained by a student in physics, chemistry and Mathematics together is 120 more than the marks obtained by him in chemistry. what are the average marks obtained by him in physics and mathematics together?
Answers
Answered by
17
Let take Subjects Physics as x , Chemistry as y and Maths as z
According to 1st condition
x + y + z = 120 + y.
x + y - y + z = 120
x + z = 120
Average marks = x + z/2 =?
120 / 2 = 60
hence answer the average marks
obtained by
him in Physics and Math is 60
Hope it helps
According to 1st condition
x + y + z = 120 + y.
x + y - y + z = 120
x + z = 120
Average marks = x + z/2 =?
120 / 2 = 60
hence answer the average marks
obtained by
him in Physics and Math is 60
Hope it helps
Answered by
1
Answer:
the average mark obtained by him in physics and mathematics together is 60
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