Noach was born in the year 1056 from creation. He lived 950 years. Avraham was born in the year 1948 from creation [Bereishis 5:28, 11:26].
Question: How many years were Noach and Avraham alive at the same time?
Answer:
1056 + 950 = 2006
2006 – 1948 = 58 years (They were alive for 58 years together)