1
NDA 2019 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
IF A and B are two events such that P(A) = 0.5, P(B) = 0.6 and P(A $$\cap$$ B) = 0.4, then what is P($${\overline {A \cup B} }$$) equal to ?
A
0.9
B
0.7
C
0.5
D
0.3
2
NDA 2019 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
A problem is given to three students A, B and C whose probabilities of solving the problem are $${1 \over 2},{3 \over 4}$$ and $${1 \over 4}$$ respectively. What is the probability that the problem will be solved if they all solve the problem independently?
A
$${{29} \over {32}}$$
B
$${{27} \over {32}}$$
C
$${{25} \over {32}}$$
D
$${{23} \over {32}}$$
3
NDA 2019 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
A pair of fair dice is rolled. What is the probability that the second dice lands on a higher value than does the first?
A
$${{1} \over {4}}$$
B
$${{1} \over {6}}$$
C
$${{5} \over {12}}$$
D
$${{5} \over {18}}$$
4
NDA 2019 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
A fair coin is tossed and an unbiased dice is rolled together. What is the probability of getting a 2 or 4 or 6 along with head?
A
$${1 \over 2}$$
B
$${1 \over 3}$$
C
$${1 \over 4}$$
D
$${1 \over 6}$$
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