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Marks obtained by Ram in Physics is 150 which is 30% of total marks obtained by him. And marks obtained by Zisa in Chemistry

Marks obtained by Ram in Physics is 150 which is 30% of total marks obtained by him. And marks obtained by Zisa in Chemistry is 3/5th of marks obtained by Ram in Physics. Ratio of total marks obtained by Ram and Zisa is 5: 4. Marks obtained by Mohit in Maths is equal to marks obtained by Zisa in Chemistry. And total marks obtained by Mohit in Physics and Chemistry together is half of total marks obtained by Ram. What is the ratio of marks obtained by Zisa in physics and Maths together to marks obtained by Ram in Chemistry and Physics together? (c) 3:2 (d) cannot be determined (a) 2:5 (b) 4:3 (e) 3:4

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