Mrs Tshabalala buys dough from a shop at R18.00/kg. The shop delivers it
to her home for free
at 06:00. She makes vetkoek (Magwinya) with the dough
(she can make 15
vetkoek with 1kg), and it takes her one hour and twenty
minutes. She sells them at the
taxi rank for R5.00 each. She sells from
Monday to Saturday
. A single trip to the taxi rank costs R12.00.



1.1 After the delivery, it takes Mrs shabalala 20 minutes to prepare the vetkoek for cooking. At what time will the vetkoek be ready to eat?