Bad Math

We were sitting around, playing some cards while Jared was rehashing his other night out at a bar. He was stoked that he bought 4 Brubakers (cheap beer) at once so he could save one trip (really? wouldn't that be three trips?). He also bragged that it only cost $11. I pointed out that the beers cost $2.50 each (which they used to cost, apparently they now cost $2.75). He responds with "No, less!" Really? He couldn't do that math fast enough to figure out that 2 beers at 2.50 would be $5, so 4 would be $10, meaning they cost more than my initial $2.50 estimation. WTG, Jared.