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Name:___________________________________
Identityno:_________________________Date:__________________SeatNo:_________

BCAACADEMY
SCHOOLOFBUILDING&DEVELOPMENT
SINGAPORE
MATHEMATICSSCREENINGTEST
SetA
1.5HOURS

Instructionstocandidates
Donotturnoverthispageuntilyouaretoldtodoso.
Checkthatyouhavethecorrectexampaper,numberofpagesandquestions.
ThispaperconsistsofTEN(10)questions(100marks).AnswerALLquestions
WriteyourName,ICNO.andSeatNo.onthiscoverpage.
AllanswersaretobewritteninTHISbooklet.
DoNOTtearoutanypage.ThisbookletisthepropertyofBCAAcademyandmustnotberemovedfromthetestcentre.
Mobilephonesaretobeswitchedoffandelectronicequipmentsarenotallowedtobeused.
Candidatesaretobringtheirownnon-programmablescientificcalculator.
Unlessotherwisestated,leaveyouranswersin3significantfigures.
Unlessthequestionsrequiretheanswersintermofπ,thecalculatorvalueforπ=3.142shouldbeused.
Ifworkingisneededforanyquestion,itmustbeshownwiththeanswer.Omissionofessentialworkingwillresultinlossofmarks.

ForOfficialUse:TestCentre:TestDate:Marks(/100):Marker:Checker:
Simplifythefollowingexpressionsusingfractionsonly.Showyourworkingclearly.
(a)		(5marks)

(b)	(12.96)	(5marks)

(a)	=
(b)	(12.96)=
















										

(a)		Givenif27=81and3=27,find9.	(5marks)

(b)		2.1x1032z2-36.5x103z-1=2.46x10-5,findz.	(5marks)

9=6561

z=






















(a)Thefollowingfigureshowsaright-angledtriangleanditsdimensions.Findx.	(4marks)

(x+3)cm

(3x-2)cm



(2x-1)cm




x+32+2x-12=3x-22

X=
	












3.	(b)	Apencilcasecontains2green,6redand12orangepens.Apenispickedoutatrandomandreplaced.Asecondpenisthenpickedoutatrandomandnotreplaced.Athirdpenisfinallypickedoutatrandom.Findtheprobabilitythatallthreepenspickedareofdifferentcolours.	(6marks)



P=















North
(a)	Thediagramshowsfourpoints,A,B,C,D,onlevelground.ItisgiventhatDisdueNorthofC,ABC=52°,ACD=120°andACB=90°.	
D

120

	
C


A

52
B


Find:
(i)	BCD,and
(ii)	BearingofBfromA
		(5marks)
		(i)BCD=150
		(ii)eastbynorth18









4	(b)	Giventha