A puzzle???

Question

Have to make the number 24 from: 5551. Plus you have to use all four digits.......

Answer 1

5! / (sqrt(5) * sqrt(5) *1), where ! is the factorial!!!

Answer 2

You didn't specify, so I'm assuming that I can use the numbers in any order and with any operations. I got 5*5 - 1^5 = 25 - 1 = 24.

Answer 3

5 *(5 - 1/5) = 24

Answer 4

Howzabout :

√{5⁵ ÷ 5¹}