Question: at what age did arjuna died?
Answer: So age of Bhima was 56, two years older to Arjuna, so Arjuna was 55 and Nakul Sahadeva were 53. Krishna was also of 55 during Mahabharata war as he had the same age as of Arjuna (6 months older). Krishna died 36 years from the time of Kurukshetra. Hence, his age during death was (55+36) = 91.