let inline isAnyThreeGreaterThan2 limit (x1, x2, x3, x4, x5) = 

    [x1;x2;x3;x4;x5] |> List.sort |> Seq.skip 2 |> Seq.sum > limit

​

isAnyThreeGreaterThan2 15 (1, 2, 5, 5, 5) |> printfn "%A"

isAnyThreeGreaterThan2 14 (1, 2, 5, 5, 5) |> printfn "%A"

isAnyThreeGreaterThan2 15 (1, 2, 5, 5, 6) |> printfn "%A"

isAnyThreeGreaterThan2 15 (1, 2, 3, 4, 5) |> printfn "%A"

isAnyThreeGreaterThan2 12 (1, 2, 3, 4, 5) |> printfn "%A"

isAnyThreeGreaterThan2 11 (1, 2, 3, 4, 5) |> printfn "%A"