Sets

Probability Level 2

If n ( A ) = 3 n(A)=3 and n ( B ) = 6 n(B)=6 , then the minimum number of elements in A ∪ B A \cup B is:


The answer is 6.

Rama Devi by Rama Devi , 43, India

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1 solution

Rama Devi
Jun 4, 2015

Given that n(A)=3 and n(B)=6.

There is a possibility that all the elements in A are there in B.

This yields the minimum solution as 6.

5 Helpful 0 Interesting 0 Brilliant 0 Confused

Did it in the same logic !

Mahtab Hossain - 6 years ago

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then why don't you upvote

Rama Devi - 6 years ago

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I did that !!

Mahtab Hossain - 6 years ago

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@Mahtab Hossain – Thanks.Try my new set

Rama Devi - 5 years, 12 months ago

@Mahtab Hossain – follow me for more such problems.

Rama Devi - 5 years, 12 months ago

like and re share this problem for others

Rama Devi - 6 years ago

I used the sets formulas of union and indersection .....but using logic can also yield the same ans.

Soham Nimale - 1 year ago

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