Mate.info.Ro.494 Subiecte Concurs Arhimede Etapa a II a 28.02
Clasa a II Etapa a II-A 2015
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Transcript of Clasa a II Etapa a II-A 2015
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Concrs Ga!eta Matematic` Jnior
Etapa Final` " 12 inie 2014
SUBIECTE " CLASA A II-A
Timp de lucru 90 min.
1. D* &$*** * ! $"% 30 [* /#]* 300 [* 302.C"& && !?
2. L$", D"*% [* A%*" " /$ $ '** &/&*$&. F*&$"& *& ! &"! %*-"$ $& " '** &/&*$&. D"$! ** "/&"! 39 %& $&, $&$ 68 %&$&, %&* $ 45 $& "* %&$ $&$, *" !" $ 19 $& "*]* %&$ %&*, $"$"]* $& $& " /#]* '*&$"& $/*, ]*% $/ $!:
". L$" " &" **, !", %/! $&$*;
#. D"*% " &" %/! !"& [* %/! ***;$. A%*" " &" **, $&$ [* %/! !"&.
3. C& !"& & "'! '*" %& "* /?
4. A'"]* (a + b) (c d) + e, %"$! &" %& & '*&$"& **&, $//"! [* %*"/"!&& 24.
5.
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6. U /& %*-/ "]*& /"! "& 100 %& $"&& & *[*.P& &/"&" $"&&/, & '*&$"& [! *& '*"& !$]& $ &&& %&
" 1 " 100.D& $& /* " '* '//*! $*'" 7 & $*&&" !$]&/ &$&"& &/!**
$"&&/ %& /&?
7. F*" %& "* / $/]*& $*$* $&$*.
