Can any one help me?

[pilates]

If a salary is 20K p.a. how much would I get for ten hours a week?

Well if it's £20k p.a. based on a 35 hour week you would be working 2/7 of the week.

2/7 x £20k is £5714.29 p.a.

Thanks so much MrsCMAW, maths isn't my strong point!

No problem :)