Cianuro Espumos

TEST o n S ETS
Showall your working!
l) I fA : { 2,3,4,5,6 }
sets ( a)A uB
ft)A nB

a nd B : { 2 , 4 , 6 , 9 ) w rit ed o wn t h ele me n os t h e
e
tf

s ubsetsf t heu niversal ( :-{ l ,?,3, 4 ,5,6t,7, g}
o
l1nd: Q -are
: et
IfP
prime numbers}, e = {'oddnumbers} ,, tisí*re átements f
{
o

(a)P ' n Q

f t) P n e ,

( c) p u e ,

r ) Givent he u niversal et( : { 4 , 5 , 6 ,7 , g , g ,1 0,I l, 1 2, l 3l
s

A : { m ultipleso f4}, B : { multipleso f3} a ndC :
{ primen umbers}
oraw a venn diagramto showall the givensetswith their elements.
-{1)
(b)ListA nC
(c) L ist A '
(d)S rate (B )
n
(a) on thevenndiagram hownn theanslver
s
i
p
space,hadehe set v e, .
s
t
Answer(a)

6

(b) There are27 children in a classi.
or t ¡esec nitdr*, i t;*iu
ü i"y"r", r 5 o wn a s coorernd3 o wn n eirher b icycre
a
a
n or a
scooter.
using a venn diagram,or othenvise,find the number
of childrenwho own a bicycle but
nota scooter.

7) Thele un 3? boysin a certainclass,2 of whom like neither
cricke! footba¡ nor
tennis.2.0like cricket, 12 likecricketand tennis,4 like cricket
andfootballbut
not tennis,3 like tennisonly, 5 like football onlv, *¿ i rrc
u[ threesports.
(a) How manylikefootball?
(b) H ow m anyl ike e xactly wo a ctivities
t
?
(c) Write down the answerto (a) in setnotation.

t

.',/

\