if you play without making any plan it is 6hours for 5k.
But if you make plans for collecting coins in certain maps that suits you, then in 40 mins you can get 1 k coins. So just 200 mins ie. 3-4 hours for 5K
but I can't do that now, I can't waste that much time, it's an Important year in my studies, also I will have no data, so I can't do that often, I can do it till June 2. Later on I have no idea
