Have a go at solving the secret code. The children in Room 18 had to persist to solve this one :)

Mrs Holt had developed a secret code to stop others from getting into her laptop. However, she has forgotten her code.
However, she does recollect five pieces of information:

-> Sum of the 5th number and the 3rd number is 14.
-> Difference of the 4th and 2nd number is 1.
-> The 1st number is one less than twice the 2nd number.
-> The 2nd number and the 3rd number equals 10.
-> The sum of all digits is 30.

What is Mrs Holt’s code?