Millionaire Mode

Open and Closed Sets

Question 1 of 14

Which of the following sets is open in the real numbers with the usual topology?

  1. The set of all rational numbers
  2. The set of all irrational numbers
  3. The set of all numbers between 0 and 1
  4. The set of all numbers greater than or equal to 0

Prize Money

15₹7 Crores
14₹1 Crore
13₹50,00,000
12₹25,00,000
11₹12,50,000
10₹6,40,000
9₹3,20,000
8₹1,60,000
7₹80,000
6₹40,000
5₹20,000
4₹10,000
3₹5,000
2₹2,000
1₹1,000