Mala and Bala got 75 marks and 25 marks in an examination. Find the ratio of the marks scored by Mala to the total marks obtained by both of them?
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. [3 MARKS]
In an examination which has questions of 100 marks, Aamir scores 54 marks while Usha loses 34 marks in her paper. The ratio of the marks of Aamir to that of Usha is same as that of the marks obtained by Preeti and Kunal. If Preeti scored 72 marks, how much did Kunal score? [3 MARKS]