Question

class 11 question of maths​

Answer 1

I am class of 6th so I didn't answer the question.

but please mark me as brainiest

Answer 2

Answer:

The greatest value of n(A ∪ B) is 1500. (option a)

Step-by-step explanation:

We know that,

The universal set is the biggest set and it involves all existing elements.

This means,

If there are two sets A and B then the Universal set U can be represented as,

n(U) = n(A) + n(B) - n(A∩B)             [since, n(A∩B) involves      

                                                          elements from both sets A

                                                          and B]

In the given question,

n(U) = 1500

n(A) = 850

n(B) = 700

Now,

n(A U B ) ≤ n(U)

⇒n(A U B) ≤ 1500

Therefore, the greatest value of n(A U B) is 1500.