Question

solve it. if u r spam I will report you. ​

Answer 1

Answer:

Hey bro,this is a question based on sets

Step-by-step explanation:

The given things are this,

U={1,2,3,4,5,6,7,8,9,10}

A={1,2,3,4,5}

A∩B={1,2,3,4}

So if you now remember your basics of sets,Universal set consists of all the values in the Venn diagram

⇒B={1,2,3,4,6,7,8,9,10} .......(consists of all values other than 5)

⇒n(B-A)

=n(B)-n(A)

=9-5

=4

Hope it would help you ..... : )