1
NDA 2015 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
An insurance company insured 2000 scooter drivers, 4000 car drivers and 6000 truck drivers. The probabilities of an accident involving a scooter driver, car driver and a truck driver are 0.01, 0.03 and 0.15, respectively. One of the insured persons meets with an accident. The probability that the person is a scooter driver, is
A
$${1 \over {52}}$$
B
$${3 \over {52}}$$
C
$${15 \over {52}}$$
D
$${19 \over {52}}$$
2
NDA 2015 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
A coin is tossed 5 times. The probability that tail appears an odd number of times, is
A
$${1 \over 2}$$
B
$${1 \over 3}$$
C
$${2 \over 5}$$
D
$${1 \over 5}$$
3
NDA 2015 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
What is the probability that the sum of any two different single digit natural numbers is a prime number?
A
$${5 \over {27}}$$
B
$${7 \over {18}}$$
C
$${1 \over {3}}$$
D
None of these
4
NDA 2016 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
A special dice with numbers 1, $$-$$1, 2, $$-$$2, 0 and 3 is thrown thrice. What is the probability that the sum of the numbers occurring on the upper face is zero ?
A
1/72
B
1/8
C
7/72
D
25/216
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