mathematics teaching 10 ~ 16
Wednesday, 22 December 2010
a person is talking to three maths teachers about how many cards they were each given by their students
they don't answer straight away but make it into a problem instead
"the product of our numbers of cards is 36"
you'll need to tell me more"
"well the sum of our number of cards is the number of cards that Anna (an English teacher) got"
the person goes to see Anna and finds out how many cards she got and returns,
"but I still need a further clue"
"well, the one of us who got the most cards is female"
the person then knows how many cards they each got
Post a Comment
Post Comments (Atom)