Time Left - 12:00 mins

11th Revision Quiz: Sets-02 (23/03/21)

Attempt now to get your rank among 51 students!

Question 1

Two newspapers A and B are published in a city. It is known that 25% of the city population reads A and 20% reads B while 8% reads both A and B. Further, 30% of those who read A but not B look into advertisements and 40% of those who read B but not A also look into advertisements, while 50% of those who read both A and B look into advertisements. Then the percentage of the population who look into advertisements is:

Question 2

In a class of 140 students numbered 1 to 140, all even numbered students opted Mathematics course, those whose number is divisible by 3 opted Physics course and those whose number is divisible by 5 opted Chemistry course. Then the number of students who did not opt for any of the three courses is:

Question 3

Let Z be the set of integers. If A = {xϵZ : 2^(x + 2) (x² – 5x + 6) = 1} and B = {xϵZ : –3 < 2x – 1 < 9}, then the number of subsets of the set A × B, is :

Question 4

A = {x : x is a prime number} and B = {x : x is a composite number} then what is the relationship between the two sets ?

Question 5

Consider the two sets:

both the roots of x² (m + 1)x + m + 4 = 0 are real} and B = [3, 5).

Which of the following is not true?

Question 6

A survey shows that 63% of the people in a city read newspaper A whereas 76% read newspaper B. If x% of the people read both the newspapers, then a possible value of x can be:

51 attempts
1 upvote
1 comment

Tags :

Mar 23JEE & BITSAT