1
NDA 2019 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
Let A $$\cup$$ B = {x | (x $$-$$ a) (x $$-$$ b) > 0, where a < b}. What are A nd B equal to?
A
A = {x | x > a} and B = {x | x > b}
B
A = {x | x < a} and B = {x | x > b}
C
A = {x | x < a} and B = {x | x < b}
D
A = {x | x > a} and B = {x | x < b}
2
NDA 2019 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
If A = {x : 0 $$\le$$ x $$\le$$ 2} and B = {y : y is a prime number}, then what is A $$\cap$$ B equal to?
A
$$\phi$$
B
{1}
C
{2}
D
{1, 2}
3
NDA 2019 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
In a school, 50% students play cricket and 40% play football. If 10% of students play both these games, then what per cent of students play neither cricket not football?
A
10%
B
15%
C
20%
D
25%
4
NDA 2019 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
If a set A contains 3 elements and another set B contains 6 elements, then what is the minimum number of elements that (A $$\cup$$ B) can have?
A
3
B
6
C
8
D
9
EXAM MAP
Medical
NEETAIIMS
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12