Time per game

Across millions of players it varies massively, even level to level for each player. For many, the question should be "how many days on average does it take you to get through a level". Some players have time to schedule things like timed boosters to use them on a few levels at a time, have massive experience in the best way to tackle different obstacles and can actually pass many in a day. Others may only pick up the game for a few minutes at the weekend, use their five lives , then try again the next week. You will always improve with experience and if you get stuck, spend some time studying tips and videos online. The things that you learn will help you in many later levels.