Fixing the bathroom door

Penny had her first pure maths exam this morning so let for school early. I left for work at the same time. I had an exam board today and by the time I’d finished, Penny called to say that her maths exam had gone well. She’s got two exams tomorrow so she was busy revising when I got home.
The bathroom door got stuck so Ben decided to fix it before dinner. 

A Levels:
Maths : Pure Maths 1