Let $a/2 = b/3 = c/5 = k$. Then $a=2k, b=3k, c=5k$. Sum $(2k+3k+5k)/5k = 10k/5k = 2$.
माना $a/2 = b/3 = c/5 = k$। तब $a=2k, b=3k, c=5k$। योग $(2k+3k+5k)/5k = 10k/5k = 2$।