I asked students to write down the steps involved in working out the answer to the above question. This is a exercise in developing an algorithm for a computer program. They were required (under duress) to use the ancient tools of pen and paper.
About 25% of the class immediately protested that this was Maths and they could not do Maths. About 50% came up with 8.53 hours… they were advised I wanted hours and minutes as per above example image.
About 25% came up with the correct answer being 8 hours and 32 minutes.
Now I want a generalized solution…