Subject

Quantitative Aptitude

Class

SSCCGL Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

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61.

AD is the median of increment ABC. If O is the centroid and AO = 10 cm then OD is

  • 5 cm

  • 20 cm

  • 10 cm

  • 10 cm


A.

5 cm


We know that:
AO : OD = 2 : 1
    OD space equals space 1 half cross times AO
therefore   OD space equals space 1 half cross times 10 space equals space 5 space cm

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62.

If in a triangle ABC, sinA = cosB then the value of cos C is

  • fraction numerator square root of 3 over denominator 2 end fraction
  • 0

  • 1

  • 1

155 Views

63.

Incentre of  is I.  and >. <img class= is

  • 115°

  • 100°

  • 135°

  • 125°

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64.

The length of the two adjacent sides of a rectangle inscribed in a circle are 5cm and 12 cm respectively. Then the radius of the circle will be

  • 6 cm

  • 6.5 cm

  • 8 cm

  • 8 cm

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65.

If sin space straight theta space cross times space cos space straight theta space equals space 1 half comma space the value of sin space straight theta space minus space cos space straight theta is (where 0 degree less than straight theta less than 90 degree):

  • 0

  • square root of 2
  • 2

  • 2

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66.

The mean of 100 observations was calculated as 40. It was found later on that one of the observations was misread as 83 instead of 53. The correct mean is

  • 39

  • 39.7

  • 40.3

  • 40.3

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67.

If straight a cubed plus 1 over straight a cubed space equals space 2 comma space then value of fraction numerator straight a squared plus 1 over denominator straight a end fraction is (a is a positive number):

  • 1

  • 2

  • 3

  • 3

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68.

If straight x open parentheses 3 minus 2 over straight x close parentheses space equals space 3 over straight x comma space then the value of straight x squared plus 1 over straight x squared will be

  • 3 1 over 9
  • 3 2 over 9
  • 2 1 over 9
  • 2 1 over 9
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69.

A sphere of radius 5 cm is melted to form a cone with base of same radius. The height (in cm) of the cone is

  • 5

  • 10

  • 20

  • 20

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70.

The difference between compound interest and simple interest on a certain sum of money for 2 years at 5% per annum is ₹ 41/-. What is the sum of money?

  • ₹ 7200

  • ₹ 9600

  • ₹ 16400

  • ₹ 16400

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