Two ships are sailing in the sea on the two sides of a light hou

Subject

Quantitative Aptitude

Class

SSCCGL Class 12

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71.

Two ships are sailing in the sea on the two sides of a light house. The angle of elevation of the top of the light house as observed from the two ships are 30° and 45° respectively. If the light house is 100m high, the distance between the two ships is :(take √3=1.73)

  • 173 m

  • 200 m

  • 273 m

  • 373 m


C.

273 m



In △ ABD,



In △ ADC,



∴ Distance between the two ships = BD + DC
                                                   = 100 + 173
                                                   = 273 m

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72.

In these questions, study the figure and answer the questions.
   The following figure shows the number of students (in thousands) admitted and passed out per year in a college during years 2000 to 2004.

The percent increase in the number of students admitted in the year 2003 over that in 2001 is

  • 133.3%

  • 33.3%

  • 40.3%

  • 40.3%

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73.

In these questions, study the figure and answer the questions.
   The following figure shows the number of students (in thousands) admitted and passed out per year in a college during years 2000 to 2004.

During 2000 to 2003, the ratio of the total number of the students passed out to the total number of students admitted is

  • 17 over 23
  • 17 over 6
  • 11 over 23
  • 11 over 23
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74. In these questions, study the figure and answer the questions.
   The following figure shows the number of students (in thousands) admitted and passed out per year in a college during years 2000 to 2004.


In which of the two years, the pass percentage of students was between 60 to 70?
  • 2000 and 2001

  • 2003 and 2004

  • 2001 and 2002

  • 2001 and 2002

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75. In these questions, study the figure and answer the questions.
   The following figure shows the number of students (in thousands) admitted and passed out per year in a college during years 2000 to 2004.


The ratio of the number of students admitted in the year 2002 to the average of the number of students passed out in the years 2003 and 2004 is
  • 7 : 8

  • 8 : 9

  • 9 : 8

  • 9 : 8

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