1
IIT-JEE 1995 Screening
MCQ (More than One Correct Answer)
+2
-0.5
Let $$0 < P\left( A \right) < 1,0 < P\left( B \right) < 1$$ and
$$P\left( {A \cup B} \right) = P\left( A \right) + P\left( B \right) - P\left( A \right)P\left( B \right)$$ then
A
$$P\left( {B/A} \right) = P\left( B \right) - P\left( A \right)$$
B
$$P\left( {A' - B'} \right) = P\left( {A'} \right) - P\left( {B'} \right)$$
C
$$P\left( {A \cup B} \right)' = P\left( {A'} \right) - P\left( {B'} \right)$$
D
$$P\left( {A/B} \right) = P\left( A \right)$$
2
IIT-JEE 1995 Screening
MCQ (Single Correct Answer)
+2
-0.5
Three of six vertices of a regular hexagon are chosen at random. The probability that the triangle with three vertices is equilateral, equals
A
$$1/2$$
B
$$1/5$$
C
$$1/10$$
D
$$1/20$$
3
IIT-JEE 1995 Screening
MCQ (Single Correct Answer)
+2
-0.5
The probability of India winning a test match against West Indies is $$1/2$$. Assuming independence from match to match the probability that in a $$5$$ match series India's second win occurs at third test is
A
$$1/8$$
B
$$1/4$$
C
$$1/2$$
D
$$2/3$$
4
IIT-JEE 1995 Screening
MCQ (Single Correct Answer)
+2
-0.5
$$\,3{\left( {\sin x - \cos x} \right)^4} + 6{\left( {\sin x + \cos x} \right)^2} + 4\left( {{{\sin }^6}x + {{\cos }^6}x} \right) = $$
A
11
B
12
C
13
D
14
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