Can a 'how many minutes' question be solved using algebra?
I am reading a book of sample IQ test questions. One example of which, is the typical 'how many minutes' question.
I can answer the question the long way, but I would be very interested to know if such questions can be solved more elegantly using algebra. I also hope this might provide a chance for brushing up my maths skills!
Allow me to provide an example:
'How many minutes is it before 12 noon, if 48 minutes ago it was twice as many minutes past 9am?'
- 12 noon less 44 minutes = 11:16am
- 11:16am less 48 minutes = 10:28am
- 0900am plus 88 minutes (44 x 2) = 10:28 am
My question: Could this question be solved using a neat algebraic method?
What do you think? Any advice would be much appreciated! Thank you :)