1
NDA 2018 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
In a class, 54 students are good in Hindi only, 63 students are good in Mathematics only and 41 students are good in English only. There are 18 students who are good in both Hindi and Mathematics. 10 students are good in all three subjects.
What is the number of students who are good in Hindi and Mathematics but not in English?
A
18
B
12
C
10
D
8
2
NDA 2018 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
A survey of 850 students in a University yields that 680 students like music and 215 like dance. What is the least number of students who like both music and dance?
A
40
B
45
C
50
D
55
3
NDA 2019 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
Let S = {2, 4, 6, 8, ........, 20}.

What are the maximum number of subsets of S?
A
10
B
20
C
512
D
1024
4
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}
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