n(A) =15, n(Aunion B) =29,n(A intersection B) =7,then find n(B)
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Answered by
3
given :
n(A) =15
n(B)=?
n(AUB)=29
n(A intersection B) =7
soln:
N(AUB)=N(A)+N(B)-N(A INTERSECTION B)
29=15+x-7
x=29-8
x=21
n(B)=21
n(A) =15
n(B)=?
n(AUB)=29
n(A intersection B) =7
soln:
N(AUB)=N(A)+N(B)-N(A INTERSECTION B)
29=15+x-7
x=29-8
x=21
n(B)=21
cutewiggles1603:
welcome
Answered by
2
Answer:
Step-by-step explanation:
n(A U B) = n(A) + n(B) - n(A intersection B)
29 = 15 + n(B) - 7
29 = 8 + n(B)
29 - 8 = n(B)
n(B) = 21
This is ur ans.
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