I have a mathematical problemt hat I just can't work out so I figured I'd put out there and see if anyone can help. I need a formula for the following situation:
Bob works 7 hours a day dealing with completed questionnaires posted to him.
Most questionnaires are easy to deal with and take him 10 minutes to deal with.
But if a questionnaire needs special attention it takes Bob 30 minutes to deal with it.
Assuming that only 20% of questionnaires need special attention, how many questionnaires can Bob deal with on 1 day?
My brain cannot deal with this problem, but I'm hoping I have provided all the neccessary information for a solution. Never was any good with percentages.
Hope someone has fun working it out or can point me in the right direction!