UK Senior Maths Challenge 1997 no.25. (S.5)

1997 senior challenge number 25. One of a set of mathematical short problems taken from UKMT’s mathematical challenges over the years. These questions are selected from the last five in each year’s challenge on the basis that very few manage to reach and/or complete them in the time given for the whole test. The idea here is that these can now be attempted individually within a similar period of time to that available in the challenge. The solutions given by the UKMT may have a different form as they have to be set out in print in their books, rather than as a visual explanatoin. The work of the UKMT can be found online at www.ukmt.org.uk