Hazrat Yousaf (A.S) and Hazrat Yaqoob (A.S) met each other after:

a) 20 Years

b) 30 Years

c) 40 Years

d) None of these

Hazrat Yousaf (A.S) and Hazrat Yaqoob (A.S) met each other after 40 Years. The story of Hazrat Yousaf (A.S) and Hazrat Yaqoob (A.S) is described in Sura Yousaf of Holy Quran.