Answer:1. 3, 6, 9, 12, 15... (each term is greater than the previous one by 3)2. 5, 10, 15, 20, 25... (each term is greater than the previous one by 5)3. 2, 5, 8, 11, 14... (each term is greater than the previous one by 3)4. 10, 20, 30, 40, 50... (each term is greater than the previous one by 10)5. 1, 3, 5, 7, 9... (each term is greater than the previous one by 2)