In a bottle$-$making process, $10\%$ of the glass entering the bottle$-$making unit $($not the whole process$)$ is lost by wastage and $18\%$ is made into sub$-$standard bottles

The latter are separated, recycled and mixed with the feed glass.

If the factory produces $25$ te$/$h of bottles, how much

$($a$)$ fresh feed is required

te$/$h

$($b$)$ how much glass is recycled?

te$/$h