INTERNATIONALKANGAROOMATHEMATICSCONTEST2007
LevelCadet:Class(78)MaxTme:1Hour
35Mn
3-Point-Problems
2007
Q1.=
2+0+0+7
A)1003B)223C)213D)123
Q2.Roseplantswereplantedinalineonbothsidesofthepath.Thedistancebetweeneachplant
was2m.hatisthemaximumnumberofplantsthatwereplantedifthepathis20mlong?
A)22B)20C)12D)11
Q3.TherobotstartswalkingonthetablefromtheplaceA2inthedirection
ofarrow,asshownonthepicture.Itcangoalwaysforward.Ifitmeets
withdifficulties(blackboxesandtheboundary),itturnsright.The
robotwillstopincase,ifhecan’tgoforwardafterturningright.On
whichplacewillitstop
A)B2B)A1C)E1D)nowhere
Q4.hatisthesumofthepointsontheinvisiblefacesofthedice?
A)15B)12C)7D)27
Q5.Ifthesumoftwopositiveintegersis11,thenthemaximumoftheirproductwillbe
A)24B)28C)30D)32
Q6.Asmallsquareisinscribedinabigoneasshowninthefigure.Findthearea
ofthesmallsquare
A)16B)28C)34D)36
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INTERNATIONALKANGAROOMATHEMATICSCONTEST2007
Q7.Atleasthowmanylittlesquareswehavetoshadeinthepictureontherightsothatithasan
axisofsymmetry?
A)3B)5C)2D)4
Q8.Apalindromicnumberisonethatreadsthesamebackwardsasforwards,so13931isa
palindromicnumber.hatisthedifferencebetweenthesmal