The ratio of marks scored by Kamal in physics, chemistry and mathematics is 3 : 3 : 4. If the average of physics, chemistry and mathematics is 80. Find the marks scored by Kamal in each subject.
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In Mathematics Sunitha scored 75 marks and Vinitha scored 25 marks. Find the ratio of Vinitha's marks to Sunita's marks

Given:-Sunitha's marks (m1)=75Vinitha's marks (m2)=25Therefore,m2m1=2575=25×125×3=13⇒m2:m1=1:3

In Mathematics Sunitha scored $75$ marks and Vinitha scored $25$ marks. Find the ratio of Vinitha's marks to Sunita's marks

Given:-
Sunitha's marks $(m_{1}) = 75$
Vinitha's marks $(m_{2}) = 25$
Therefore,
$\frac{m_{2}}{m_{1}} = \frac{25}{75} = \frac{25 \times 1}{25 \times 3} = \frac{1}{3}$
$\Rightarrow m_{2} : m_{1} = 1 : 3$