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Byju's Answer
Standard IX
Mathematics
Betweenness
10. n(A) =20,...
Question
10. n(A) =20, n,(B)=18 and n(A intersection B) =5, then n(A-B) is ?
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Similar questions
Q.
If n(U) = 50, n(A) = 20,
n
(
(
A
∪
B
)
′
)
= 18 then n(B - A) is
Q.
What is the relation between n (A), n( B), n(A intersection B)
and n(A union B)
Q.
Let
A
and
B
be
two
sets
such
that
n
(
A
)
=
20
,
n
(
A
∪
B
)
=
42
and
n
(
A
∩
B
)
=
5
.
Then
,
n
(
B
−
A
)
=