Math, asked by ersudarsan2000, 6 months ago

if nA=20 ,nB=30 nAUB=40 Find nAnB​

Answers

Answered by Bhankar
8

Answer:

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Answered by vishvasak
1

Answer:

10

Step-by-step explanation:

Given that,

n(A) = 20, n(B) = 30, n(AUB) = 40, n(AnB) =?

Wkt,

n(AUB) = n(A) +n(B) - n(AnB)

40 = 20 + 30 - n(AnB)

n(AnB) = 50 - 40

n(AnB) = 10

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