Question # 1

No. of arrangements of the letters of the word PAKPATTAN can be made, taken all together ?

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15130

15120

1512

none of these

The roots of the equation 25x² - 30x + 9 = 0 are;

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rational

irrational

equal

complex

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r₁

r₂

r₃

r

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40

-40

26

-26

Sum of integral multiples of there between 4 and 22 is:

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81

75

211

none

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If α, ß, Γ are the angles of a oblique triangle, then:

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α = 90°

ß = 90°

Γ = 90°

none of these

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diagonal matrix

Conjugate of complex number (-a, -b) is:

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(-a, b)

(-a, -b)

(a, -b)

none of these

The middle term in the expansion of (a+b)²⁰ is;

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10^th term

11^thterm

12^thterm

13^thterm

No. of necklaces can be made from 7 beads of different colors ?

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360

120

60

70

A reference angle Θ is always:

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If A and B are two matrices, then:

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A B = O

AB = BA

AB = I

AB may not be defined

In triangle the length of the sides are 7, 4√3 and √13. Then the smallest angle is:

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15°

30°

60°

45°

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3×2

2×3

2×2

3×3

For what value of k, the roots of the equation x² + √k x + 2 = 0 are equal:

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1

8

2

4

y = sin^-1 x if and only if x = sin y, where:

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Fifth term of the sequence 2, 6, 11, 17.

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24

41

32

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