The questions given below contain three statements giving certain data. You have to decide whether the data given in the statements are sufficient for answering the question? How many marks did Arun get in English? (A) Arun secured an average of 60 marks in four subjects including English. (B) He secured a total of 170 in English and Mathematics together. (C) He secured a total of 180 in Mathematics and Science together.

Statement A: Average of 4 subjects = 60 → total = 240. But we don't know individual subject marks. Statement B: English + Math = 170. Statement C: Math + Science = 180 → Math = 180 - Science. Combining B and C: English + (180 - Science) = 170 → English = Science - 10. But without knowing Science, we can't find English. Statement A alone or with others doesn't help because we have 4 unknowns. Therefore, English marks cannot be uniquely determined, making option E correct.