wats d use of ap in real life

Some real life applications of AP are:-

1.Straight Line Depreciation:-This is where an asset may be depreciated by a fixed amount per year. For example- If an asset costs $v when new, and is depreciated by $d per year, its value each year can be represented by an arithmetic progression
v, v-d, v-2d, ....

2. The thickness of a roll of paper where the first term is the diameter of the core of the roll and twice the thickness of the paper is the common difference.
 

3. Building a ladder with sloping sides - the length of each rung would form an AP