Math Central - mathcentral.uregina.ca
Quandaries & Queries
Q & Q
. .
topic card  


pigeon hole

list of
. .
start over

2 items are filed under this topic.
Friends in a class 2009-09-14
From pran:
it is known that among any group of three students in a class two of them are friends. the total number of students is 25. prove that there is a student who has at least 12 friends
Answered by Claude Tardif.
Divisibility by 2 or 5 or both 2003-10-30
From Abdu:
How many positive integers less than 1,001 are divisible by either 2 or 5 or both?
Answered by Penny Nom.



Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences.



Home Resource Room Home Resource Room Quandaries and Queries Mathematics with a Human Face About Math Central Problem of the Month Math Beyond School Outreach Activities Teacher's Bulletin Board Canadian Mathematical Society University of Regina PIMS