When is Task Approved???

I think it totally depends on the task provider. They generally pay you soon after approving your work. Some of the tasks get approved almost immediately while others might take as much as a day or two to get approved. Some task providers specify it in their description, the time they would take to approve it. And welcome to mylot.

It depends. Until that person who made that task approves it. It can take minutes or even days. Depending if that user is very active. So all you have to do is wait till that person check his task an approve it.