There's been a big red ABSA poster up in my corridor for two weeks, advertising some sort of graduate development programme. It has a little mathematical conundrum on it, which reads as follows:
2+3=10
7+2=63
6+5=66
8+4=96
9+7=?
This bugged me for a couple of days, as I dashed madly past it in Hellweek flurries, and eventually I stopped and looked
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