1
NDA 2016 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
What is the number of different messages that can be represented by three 0's and two 1's?
A
10
B
9
C
8
D
7
2
NDA 2017 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
A tea party is arranged for 16 people along two sides of a long table with eight chairs on each side. Four particular men wish to sit on one particular side and two particular men on the other side. The number of ways they can be seated is
A
24 $$\times$$ 8! $$\times$$ 8!
B
(8!)3
C
210 $$\times$$ 8! $$\times$$ 8!
D
16!
3
NDA 2017 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
Let A = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}. Then, the number of subsets of A containing two or three elements is
A
45
B
120
C
165
D
330
4
NDA 2017 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
Three-digit numbers are formed from the digits 1, 2 and 3 in such a way that the digits are not repeated. What is the sum of such three-digit numbers?
A
1233
B
1322
C
1323
D
1332
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