Sets Test - 1...

Let A = { 1,2,3,4} , B = { 2,3,4,5,6 } , then (A∩B)is equal to :

Let A and B be two sets in the universal set . Then A - B is equal to

If A and B are two finite sets such that A ∩ B is not a null set, then n (A ∪ B) is equal to

Let A = { a,b,c } , B = { b,c,d } , C = { a,b,d,e } , then  A∩(B∪C) is

Out of 500 people in a locality, the numbers of people who buy items A, B and C are as given below: 
Item A only - 90, item A but not B - 115, items A and C - 40, item A - 130, items B and C - 40, item C - 240, none of the three - 120.
Find the number of people who buy A or B, but not C.

Let U = { 1,2,3,4,5,6,7,8,9,10 } , A = { 1,2,5 } , B = { 6,7 }. Then A∩B′  is

The set (A U B U C⁾ ∩ (A ∩ B^c ∩ C^c)^c ∩ C^c is equal to

Let A be the set of all determinants of order 3 with entries 0 or 1 only, B the subset of A consisting of all determinants with value 1 and C the subset consisting of all determinants with value - 1. Which of the following options is correct?

Let A and B be two sets such that n(A)=35,n(B)=42 and n(A∩B)=17, find n(A−B)

In a party, 40 people drank tea, 30 people drank coffee, 25 people drank juice, 15 people drank tea and coffee, 12 people drank juice and tea, 8 people drank coffee and juice and 5 people drank all the three. How many people drank only coffee?