This question was asked in GD from my college placement cell .
Let’s take the example of passengers on a flight. They are all on the same plane though they have very different reasons to be on that specific one, therefore they are just a group.
On the other hand, a team consists of individuals and tasks that are interdependent and rely on each other. Sometimes team members share similar roles and responsibilities. Just like the cabin crew on the plane: their primary reason to be there is to make the journey comfortable for the passengers.
Nowadays, group or team concept is adopted by the organization, to accomplish various client projects. When two or more individuals are classed together either by the organization or out of social needs, it is known as a group. On the other hand, a team is the collection of people, who are linked together to achieve a common objective.