Let's solve the problem step-by-step.
Step 1: Understand the relationships between scores
- Raman scored 25 marks less than Rohit.
- Rohit scored 45 more marks than Sonia.
- Rohan scored 75 marks, which is 10 more than Sonia, so Sonia scored \(75 - 10 = 65\) marks.
Step 2: Calculate scores for each person
- Sonia's score: 65 marks (calculated from Rohan's score).
- Rohit's score: \(65 + 45 = 110\) marks.
- Raman's score: \(110 - 25 = 85\) marks.
- Ravi's score is 34 marks more than Raman, so \(85 + 34 = 119\) marks.
Step 3: Find the maximum marks for the test
- Ravi's score is 50 less than the maximum marks.
- If Ravi scored 119, maximum marks = \(119 + 50 = 169\).
Step 4: Calculate the percentage of marks Ravi scored
- Percentage = \(\frac{\text{Ravi's score}}{\text{Maximum marks}} \times 100\)
- Percentage = \(\frac{119}{169} \times 100 \approx 70.41\%\)
Thus, Ravi scored approximately 70% of the total marks, making 70 the correct answer.