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Subjects
Mathematics State Board
Class 9
Set Language
Cardinality and Practical Problems on Set Operations-I
3.
Two marks exercise problems I
Exercise condition:
4
m.
1
. If
n(A) = 25
,
n(B) = 40
,
n(A \cup B) = 50
and
n(B') = 25
, find
n(A \cap B)
and
n(U)
.
n(A \cap B)
=
n(U)
=
2
. If
n(A) = 300
,
n(A \cup B) = 500
,
n(A \cap B) = 50
and
n(B') = 350
,
n(B)
and
n(U)
.
n(B)
=
n(U)
=
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