Question

if n(A) =10n(B)=25,n(A union B) =5 then find n(A union B)​

Answer 1

it is already given that n(A union B) =5

so, no need to find it

but actually it is not possible to have n(A union B) less than both n(A) and n(B) so please check your question

Answer 2

Your answer

Given ⬇️

• A = 10 n
• B = 25 n

Find ⬇️

• ( A union B )

Solution ⬇️

A = { 10 }

B = { 25 }

(A union B ) = { 10 , 25 }

therefore A union B = { 10 , 25 }

$\star \star \star \star \star$

Hope this will help you...

Note⬇️

A U B = B U A