How can you earn 40 dollars a day in bitcoin?? , let's share the knowledge on this topic , and hopefully we get more success after share my experience in here
For me 40$ worth of bitcoins is quite hard to earn in a day. Especially if you haven't enough money to invest to earn bitcoins. But if you can have 3 - 5 Antminer L3 you can now earn more than 40$ per day.
Yes, 40$ worth is quite big for us to earn in just a day. If that's the case, earning that amount in a day is too difficult. So, if you really want to earn that amount in a day, you need to do all the hard work so you can earn it. And I think you must also have bigger amount of bitcoin so you can do the trading with different trading sites.