Math Help - Simple formular help wanted for hourly wage

Can anyone help ?
I have a window cleaning round and Im trying to work out the formular required for working out my hourly rate for particular jobs.
I will have the following information

• The Time a job takes to complete in minutes
• The cost of the Job in £s

For example a job that takes 23 minutes charged at £12.50
all i need to know is the formular for calculating the hourly rate !

Im sure this will be an easy one and hope someone can help me out ...

Originally Posted by slendersunfish

Can anyone help ?
I have a window cleaning round and Im trying to work out the formular required for working out my hourly rate for particular jobs.
I will have the following information

• The Time a job takes to complete in minutes
• The cost of the Job in £s

For example a job that takes 23 minutes charged at £12.50
all i need to know is the formular for calculating the hourly rate !

Im sure this will be an easy one and hope someone can help me out ...

Your example gives

Many Thanks