On average, four-year universities are more expensive, The cost of room and board includes housing and food, and To save money, some students attend a public university.
What are the costs associated with public universities?
When calculating how much college education will cost, consider the following five areas of expenses: tuition and fees, housing and board, books and supplies, personal expenses, and transportation. Some of these costs are within your control to some extent.
Thus, four year public universities are considered as expensive due to various costs being associated with them.
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