2016۹P410弾 - d

ij֧꠹T24ِYԓӋuxMT2M43x˜ِ֪M4ϵT53T7헶_˜ʵTһ_˜ʵTһKuxĨDMTЎ׷N A.28 B.12 C.6 D.4

_ C  Ĵ B شe`

ɨD헶_˜ʵTһ_˜ʵTһ֪˔3һ_˜ʞ1243=8OͬrMɂ˜ʵTxt5+7-x=8x=4tMTĿܔ_𰸞C c нMφ}

65

7СΑָҎÿ˿235ָһΑСһ23ָ3ָСЎ A.4 B.5 C.2 D.3

_ D  Ĵ C شe`

}O235ָС˔քexyztТx+y+z=72x+3y+5z=23ڣ١2=y+3z=9ɵy3ı_𰸞D c ̆}

66

ijƸyTgĴСΞСwССԃ˵gСf҂g֮͞73qСwfҺСһӴĕrС15qСfҺСһӴĕrСw31qFСwСքeٚq A.2923



B.2921 C.2822 D.2721

_ B  Ĵ C شe`

һg}xϢų

A헣wքe2973-29+23=2123qMgΜpСe`

B헣wքe2973-29+21=2321qw23qt21-29-23=15q23qtw29+23-21=31q_

C헣wքe2873-28+22=2322qw23qt22-28-23=1715qe`

D헣wքe2773-27+21=2521qw25qt21-27-25=1915qe`

g׃ɵСwСg飨31-152=8xֻ2921M _𰸞B c g}

67

4TٷƿԇСС˿ֶ320Сķ֔ҳɵȲзֲtС֔ߵn̵ķ֔С֔͵n̵ķ֔ߣ

A.80 B.78 C.76 D.74

_ B  Ĵ C شe`

ʹ÷֔tʹС֔ߵn̷֔MܸС֔͵n̷֔MܵtOС֔ߵn̷֔xdtɵ320=4x-d-2d-3d80+1.5d=xxdżxԓ



txȡ98ʹСn͵ķ֔MܵtT֔100tn̷֔20tֵ98-20=78 _𰸞B c ֵ}

68

һِꠃɃɷֽMMِ̭Mһ݆ɃɷֽMِِ̭֪̭M2݆қ]ٌ݆ʣµMІѭhِ^yӋһM33ِ˴αِһِ A.20 B.22 C.24 D.26

_ C  Ĵ B شe`

M2΃ɃɷֽMِ̭ҟo݆ɵÈ4ıųBDA20ɵِΔ=10+5+ _𰸞C c W\

69

ijtԺˎĹˆTʩ݆๤ƶҎ£һ˵һϰڶϰȻϢ֪Сµһ͵ڶϢ_ʼϰՈС·һϢ˶ A.13 B.15 C.17 D.19

_ D  Ĵ B شe`

¹31ǰϢ߀ʣ29ֵƶϰϢһ5

ǽv54ʣ4߀

=25c33ìų

ϢһϢ2+53+2=19 _𰸞D

c چ}

70

һԭӋӹ6֮˙CЧ40%˱ԭӋǰ4깤ԭӋӹ780ٸCtԱԭӋǰ2깤@жټ A.1200 B.1400 C.1680 D.1960

_ A  Ĵ B شe`

Ч40%tЧ֮Ȟ57rg֮Ȅt75Hǰ4깤rg˃ɷtÿݞ2tԭӋӹtҪ72=14ԭӋ14+6=20깤Fڼӹ780֮Чʱ׃57trg׃75ǰtǰ780ԭӋ13ӹɵtÿӹ78013=60@6020=1200 _𰸞A

71

Ոo4xxmһ놖̖̎ʹ֮ʬFһҎ

A.A B.B C.C D.D

_ C  ش_

^}ɽoĈDД飺DsyoÿDжڶ]Ŀհׅ^ȿ]DеĨD桬ó9322ϧ]@Ҏ^씵ֿ԰lFֻʬFfpҎǰ֨D932D9ĞD4ɘҎ˼һDеĨD桬׃4^ڶ͵DlFɂDШD桬cǣֱͬ]мֱǼɵ

CɵһDֱɵĨD桬4ˆDʾ





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