# Maths

posted by
**Robert**
.

Mr Jones takes 4 hours to paint a fence.

Mark his son takes 6 hours to paint the same fence.

How long does it take for them both to paint the fence?

posted by
**Robert**
.

Mr Jones takes 4 hours to paint a fence.

Mark his son takes 6 hours to paint the same fence.

How long does it take for them both to paint the fence?