What are fixed and variable costs and break even?

Fixed Cost = This is the cost which does not change with change with in the certain range of production of units.

Variable cost = This is the cost which change with the change of level of production but it is also remain fixed according to per unit.

Break even point = It is the point upto the production of units level where company is at no profit no loss leve less then this level company in loss morethen this level company in profit.