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TN State Board
TN 11th Standard
Maths
TEST : 5
# TN State Board
# TN 11th Standard
# Maths
# TN 11th Maths
Prepare / Learn
Q1.
The number of 5 digit numbers all digits of which are odd is
A.
25
B.
5
5
C.
5
6
D.
625
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Answer :
Option B
Explaination / Solution:
# TN State Board
# TN 11th Standard
# Maths
# TN 11th Maths
Prepare / Learn
Q2.
If A and B are any two events, then the probability that exactly one of them occur is
A.
B.
C.
P( A ) + P( B ) − P( A ∩ B )
D.
P ( A) + P ( B ) + 2 P ( A ∩ B)
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Answer :
Option B
Explaination / Solution:
# TN State Board
# TN 11th Standard
# Maths
# TN 11th Maths
Prepare / Learn
Q3.
If
n
C
10
>
n
C
r
for all possible r, then a value of n is
A.
10
B.
21
C.
19
D.
20
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Answer :
Option D
Explaination / Solution:
# TN State Board
# TN 11th Standard
# Maths
# TN 11th Maths
Prepare / Learn
Q4.
If the point (8,
-
5) lies on the locus x
2
/16
-
y
2
/25 = k, then the value of k is
A.
0
B.
1
C.
2
D.
3
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Answer :
Option D
Explaination / Solution:
# TN State Board
# TN 11th Standard
# Maths
# TN 11th Maths
Prepare / Learn
Q5.
If
A
and
B
are two matrices such that
A
+
B
and
AB
are both defined, then
A.
A and B are two matrices not necessarily of same order
B.
A and B are square matrices of same order
C.
Number of columns of A is equal to the number of rows of B
D.
A = B.
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Answer :
Option B
Explaination / Solution:
# TN State Board
# TN 11th Standard
# Maths
# TN 11th Maths
Prepare / Learn
Q6.
A vector
makes 60° and 45° with the positive direction of the x and y axes respectively. Then the angle between
and the z-axis is
A.
45°
B.
60°
C.
90°
D.
30°
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Answer :
Option B
Explaination / Solution:
# TN State Board
# TN 11th Standard
# Maths
# TN 11th Maths
Prepare / Learn
Q7.
If {(x) = |x
–
2| + |x + 2|,
x
∊
R, then
A.
B.
C.
D.
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Answer :
Option A
Explaination / Solution:
# TN State Board
# TN 11th Standard
# Maths
# TN 11th Maths
Prepare / Learn
Q8.
A.
1
B.
- 1
C.
0
D.
2
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Answer :
Option A
Explaination / Solution:
# TN State Board
# TN 11th Standard
# Maths
# TN 11th Maths
Prepare / Learn
Q9.
The solution set of the following inequality |x - 1| ≥ |x – 3| is
A.
[0, 2]
B.
[2,∞)
C.
(0, 2)
D.
(-∞, 2)
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Answer :
Option B
Explaination / Solution:
# TN State Board
# TN 11th Standard
# Maths
# TN 11th Maths
Prepare / Learn
Q10.
If y = 1/ a − z , then dz/ dy is
A.
(a − z)
2
B.
−( z − a)
2
C.
(z + a)
2
D.
− ( z + a)
2
View Solution
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Answer :
Option A
Explaination / Solution:
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