With more families concerned about how they will afford college , some schools are offering an unbeatable deal.

While the total cost of college is nearing or crossing the $100,000 threshold at several institutions across the country, according to data provided by The Princeton Review, tuition is completely free for all students at handful of other colleges and universities in the U.S.

Although paying this tab is easy, getting in may not be. Each of these schools has high academic standards, experts say — and in return for a degree at no cost, the commitment they require, even after graduation, is steep.

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