Question: 1 jug how many years?
Answer: 2000 + 200 + 200 = 2400 divine years (= 864000 human years) = 1 Dvapara Yuga. 1000 + 100 + 100 = 1200 divine years (= 432000 human years) = 1 Kali Yuga. 12000 divine year = 4 Yugas (= 4320000 human years) = 1 Mahā-Yuga (also is equaled to 12000 Daiva (divine) Yuga)