Subject

Quantitative Aptitude

Class

SSCCGL Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

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61.

square root of 1 plus straight x over 144 end root space equals space 13 over 12 comma then x equals to

  • 1

  • 13

  • 27

  • 25


D.

25

square root of 1 space plus space straight x over 144 end root space equals space 13 over 12
S.B.S.
rightwards double arrow space space space 1 space plus space straight x over 144 space equals space 169 over 144
rightwards double arrow space space space space space straight x over 144 space equals space 169 over 144 minus 1
rightwards double arrow space space space space space straight x over 144 space equals space fraction numerator 169 minus 144 over denominator 144 end fraction
rightwards double arrow space space space space space space space straight x space equals space 25

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62.

If 'O' is the incentre of the Δ PQR. If ∠POR = 115° then value of ∠PQR is

  • 40°

  • 65°

  • 50°

  • 25°

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63.

The in-radius of triangle is 4 cm and its area is 34 sq cm. The perimeter of the triangle is

  • 8.5 cm

  • 17 cm

  • 34 cm

  • 20 cm

94 Views

64.

If tan space straight theta space plus space cot space straight theta space equals space 2 then the value of tan to the power of straight n straight theta space plus space cot to the power of straight n straight theta is

  • 2n

  • 2 to the power of straight n over 2 end exponent

  • 2 to the power of 1 half end exponent

  • 2

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65.

A certain number of men can do a piece of work in 60 days. If there were 6 men more, the work can be finished 20 days earlier. The number of men working is

  • 6

  • 12

  • 18

  • 24

49 Views

66.

If a2 = b + c,   b2 = c + a,   c2 = a + b, then the value of:
3 open parentheses fraction numerator 1 over denominator straight a plus 1 end fraction space plus space fraction numerator 1 over denominator straight b plus 1 end fraction space plus space fraction numerator 1 over denominator straight c plus 1 end fraction close parentheses

  • 1

  • 1 third

  • 3

  • 4

51 Views

67.

The area of a Δ ABC is 10.8 cm2. If CP = PB and 2AQ = QB, then the area of the Δ APQ is:

  • 3.6 cm2

  • 0.9 cm2

  • 2.7 cm2

  • 1.8 cm2

218 Views

68.

ABCD is a trapezium in which AD || BC and AB = DC = 10 m. Then the distance of AD from BC is

  • 10√2 m

  • 4√2 m

  • 5√2 m

  • 6√2 m

110 Views

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69.

From the top of a building 60 m high, the angle of depression of the top and bottom of a tower are observed to be 30° and 60°. The height of the tower (in metre) is:

  • 40

  • 45

  • 50

  • 55

56 Views

70.

If a circle of radius 12 cm is divided into two equal parts by one concentric circle, then radius of inner circle is

  • 6 cm

  • 4 cm

  • 6 square root of 2 space cm

  • 4 square root of 2 space cm

83 Views

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