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Byju's Answer
Standard X
Mathematics
Addition Theorem of Probability for 2 Events
If nA=15,A∪...
Question
If
n
(
A
)
=
15
,
(
A
∪
B
)
=
29
,
n
(
A
∩
B
)
=
7
, then
n
(
B
)
=
?
Open in App
Solution
n
(
A
∪
B
)
=
n
(
A
)
+
n
(
B
)
−
n
(
A
∩
B
)
⇒
n
(
B
)
=
29
−
15
+
7
=
29
−
8
=
21
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2
Similar questions
Q.
If n (A) = 15, n (A
∪
B ) = 29, n (A
∩
B) = 7 then n (B) = ?
Q.
If
n
(
A
)
=
15
,
n
(
A
∪
B
)
=
29
,
n
(
A
∩
B
)
=
7
then find
n
(
B
)
.
Q.
If
n
(
A
)
=
29
,
n
(
A
∪
B
)
=
15
,
n
(
A
∩
B
)
=
7
find
n
(
B
)
.
Q.
Solve
If n(A) =15 ,
n
(
A
∪
B
)
=
29
,
n
(
A
⊓
B
)
=
7
find n(B) .
Q.
Solve the following question
If
n
(
A
)
=
15
,
n
(
A
∪
B
)
=
29
,
n
(
A
∩
B
)
=
7
then find
n
(
B
)
=?
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Standard X Mathematics
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