Let maximum marks in a subject be 100.
Total maximum marks in three subjects = 3 × 100 = 300.
Let ratio constant = x
Given that,
Mathematics : Physics : Chemistry = 4 : 5 : 6
Marks in mathematics = 4x
Marks in physics = 5x
Marks in chemistry = 6x
Total marks = 4x + 5x + 6x = 9x + 6x = 15x.
But overall aggregate marks = 60%
60% of 300 = 0.6 × 300 = 180.
So, we can say that :
15x = 180
x =
x = 12.
Marks in mathematics = 4x = 4 × 12 = 48
Marks in physics = 5x = 5 × 12 = 60
Marks in chemistry = 6x = 6 × 12 = 72.
All these marks are out of 100 so these can be considered as percentage too.
Clearly,
Sudeep scored more than 70% marks in Chemistry only.
Hence, the correct answer is "One".