s1_1st_term_2012-13
DESCRIPTION
Form 1 MathTRANSCRIPT
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ST.CATHARINESSCHOOLFORGIRLS,KWUNTONG
FIRSTTERMEXAMINATION(20122013)F.1MATHEMATICS
Name:
Class: ( )
Timeallowed:1hour 15minutes Date:41220121. ThispaperconsistsofSection A,BandC.2. AnswerALLquestionsinthisquestionanswerpaper.3. Unlessotherwisespecified,allworkingmustbeclearlyshown.4. Unlessotherwisespecified,numericalanswersshouldbeexact.5. Thediagramsinthispaperarenotnecessarilydrawn toscale.6. UseofcalculatorsisNOTallowed.
SectionA MultipleChoiceQuestions(40marks)
Answerthequestionsintheboxesprovidedattheendofthissection.
1. Whentwonumbersaremultiplied,theresultiscalledthe
2. Onacertainday,Maryspent12
ofthetimeinsleepingand16
ofthetimeinstudying.
Howmanyhoursareleft?
3. WhatarethenumbersrepresentedbyRandS?
A. 4,1 = - = SRB. 6,1 = - = SRC. 4,2 = - = SRD. 6,2 = - = SR
4. [ ] = + - - + - )8()21(12(
A.41 B.1 C.+17 D.+25
5. Whichofthefollowinggive(s)apositiveresult?I. )4()3( - -II. )5()1( - - -
III.)2()12(
- - +
A.Ionly B.IandIIIonly C. Allofthem D.Noneofthem
6. bb 423 canbesimplifiedas
A.83
2 - . B.85
1 . C. 26b . D. 283b .
A.sum. B.difference. C. product. D.quotient.
A.4hours B.8hours C. 12hours D.16hours
Marks:
100
0 2
R S
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cmx
2
cmx )3( -
cm8
7. UseanalgebraicexpressiontorepresentDivideqby5andthenaddthequotienttothe
productof3andp.
A.5
3q
p + B.q
p5
3 + C. qp
53
+ D.53qp
+
8. Itisgiventhatxy
xyF
- =33
.When 2 =x and 6 - =y ,F =
A.59. B.
59
- . C.49. D.
49
- .
9. Solvetheliteralequation bc
bax =
-forx.
A.babbc
x - -
= B.bca
bx
- = C.
bac
bx -
+ = D.a
bbcx
+ =
10. Ifthegeneraltermofasequenceis )2( +nn ,findthesumofthe5thtermandthe10thtermof
thesequence.
A.15 B.35 C.120 D.155
11. Findthe6thtermofthesequence27,
45,63,81,
101
- ,
A.121
B.121
- C.41
D.41
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12. Iftheareaofthefollowingtrapeziumis108cm2,findthelengthofitsupperbase.
A.6cm B.10cm C.18cm D.20cm
13. Arrangethenumbers74,57%and0.572indescendingorder.
A.0.572,57%,74
B.57%,74,0.572
C.0.572,74,57%
D.57%,0.572,74
14. Themembershipofasportsclubhaschangedfrom1500to1 125.Whatisthepercentage
changeinthemembershipoftheclub?
A.+25% B.1
33 %3
- C. -25% D. %31
33 +
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15. Refertothefigureontheright.Whatpercentageofthefigureisshaded?A.44%B.48%C.52%D.56%
16. Inatoyshop,acustomercangetafreetoycarifhebuys4toycars.Findthediscountpercent.
A.10% B.20% C.25% D.30%
17. ThemeasureofaroundangleisA.twicethemeasureofanacuteangle.B.fourtimesthemeasureofastraightangle.C.fourtimesthemeasureofanobtuseangle.D.twicethemeasureofastraightangle.
18. From2:30p.m.to9:30p.m.,whatanglehasthehourhandofaclockturned?A.180 B.210 C.240 D.270
19. WhichofthefollowingisthecrosssectionobtainedbycuttingthesolidalongABC?
A. B.
C. D.
20. Howmanyvertices,edgesandfacesdoesapentagonalprismhave?
No.ofvertices No.ofedges No.offacesA. 6 10 5B. 6 10 7C. 10 15 5D. 10 15 7
Answer
1. 2. 3. 4. 5.
6. 7. 8. 9. 10.
11. 12. 13. 14. 15.
16. 17. 18. 19. 20.
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SectionB ShortQuestions(30marks)
1. Calculatethevalueofeachofthefollowing.
(a)139
71
531
7 - (3marks)
(b) 83)]17()25[()50( - - - - - - (3marks)
Solution:
2. Solvethefollowingequations.
(a) 11x+6x41 8x =5 (2marks)(b) [ ] 964)1(33 = + - aa (3marks)
Solution:
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3. Thecost$C ofateapartyisgivenby C=200+30(n10),wherenisthenumberofguests.
(a) Findthecostoftheteapartyifthereare25guests. (2marks)
(b) Findthenumberofguestsifthecostis$1160. (3marks)
Solution:
4. Forthesequence6,12,18,24,
(a) writedownthe5th andthe6th terms, (2marks)
(b) writedownthegeneralterm, (1mark)
(c) usetheresultin(b)tofindthe14th term. (1mark)
Solution:
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5. Mayisnowxyearsold.Rebeccasageis3 timesMaysage.
(a) Expressthefollowingsintermsof x,
(i) Maysage9yearslater, (1mark)
(ii) Rebeccasage9yearslater. (1mark)
(b) Nineyearslater,Rebeccasagewillbe2timesMaysage.FindMaysagenow.
(3marks)
Solution:
6. Tomearns$8000amonthandspends60%ofhissalaryonrent.
(a) Howmuchdoeshespendonrent? (2marks)
(b) Iftherentisincreasedby$600,whatpercentageofhissalaryisspentonrent?
(3marks)
Solution:
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SectionC LongQuestions(30 marks)
7. Thereare45multiplechoicequestionsinatest.Themarksaregivenaccordingtothe
followingguidelines:
4markswillbeawardedforeachcorrectanswer
2markswillbedeductedforeachwronganswer
1markwillbedeductedforeachunansweredquestion.
(a) Jasonattemptedthetestandanswered42questions.Hegot36 correctanswers.What
isJasonsscoreinthetest? (4marks)
(b) Mary attemptedthetestandansweredallthequestions.Shegot126marks.Findthe
numberofcorrectanswersthatshegot. (4marks)
(c) WhatpercentageofMarysansweriswrong? (2marks)
Solution:
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8. (a) Solvetheequation28
7241 xx
= -
- . (4marks)
(b) $1000issharedamongTom,DickandFlora.Tomgets$200morethantwicethe
amountDickgetsandFloragets$100lessthan3timestheamountDickgets.How
muchdoesTomget? (6marks)
Solution:
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9. Themarkedpriceof1dozenapplepiesis$180.Theshopoffersadiscountof20%after
8p.m.Charlottebuys1dozen applepiesat6p.m.and4dozen applepiesat9p.m.
(a) HowmuchdoesCharlottepayfortheapplepies? (2marks)
(b) Findtheoveralldiscountpercent. (3marks)
(c) Iftheshopmakesalossof10%,findthecostpriceofeachapplepie. (5marks)
Solution:
~EndofPaper~