17-07-2022
Mathematics

contestada

If n(A) equals 100 and n(B) is equals to 120 and A is the subset of B, find the value of an n(A union B)

Respuesta :

Nepalieducation Nepalieducation

17-07-2022

Answer:

200

Step-by-step explanation:

Solution,

Given,

n(A)=100

n(B)=120

A⊂B

n(A∩B)=20

n(A∪B)=n(A)+n(B)-n(A∩B)

n(A∪B)=100+120-20

n(A∪B)=200

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