1
NDA 2017 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
Five sticks of length 1, 3, 5, 7 and 9 feet are given. Three of these sticks are selected at random. What is the probability that the selected sticks can form a triangle?
A
0.5
B
0.4
C
0.3
D
0
2
NDA 2017 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
A committee of two persons is constituted from two men and two women. What is the probability that the committee will have only women?
A
$${1 \over 6}$$
B
$${1 \over 3}$$
C
$${1 \over 2}$$
D
$${2 \over 3}$$
3
NDA 2017 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
A question is given to three students A, B and C whose chances of solving it are $${1 \over 2}$$, $${1 \over 3}$$ and $${1 \over 4}$$ respectively. What is the probability that the question will be solved?
A
$${1 \over 24}$$
B
$${1 \over 4}$$
C
$${3 \over 4}$$
D
$${23 \over 24}$$
4
NDA 2017 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
For two dependent events A and B, it is given that P(A) = 0.2 and P(B) = 0.5. If A $$ \subseteq $$ B, then the values of conditional probabilities P(A / B) and P(B / A) are respectively
A
$${2 \over 5}$$, $${3 \over 5}$$
B
$${2 \over 5}$$, 1
C
1, $${2 \over 5}$$
D
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