The value of  is from Quantitative Aptitude SSC - CGL

Subject

Quantitative Aptitude

Class

SSCCGL Class 12

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71.

The value of cot space 17 degree open parentheses cot space 73 degree space cos squared 22 degree space plus space fraction numerator 1 over denominator cot space 17 degree space sec squared 68 degree end fraction close parentheses is

  • 0

  • 1

  • 2

  • square root of 3


B.

1

cot space 17 degree open parentheses cot space 73 degree space cos squared 22 degree space plus space fraction numerator 1 over denominator cot space 17 degree space sec squared 68 degree end fraction close parentheses
equals space cot space 17 degree space cot space 73 degree space cos squared 22 degree space plus space fraction numerator cot space 17 degree over denominator cot space 17 degree space sec squared 68 degree end fraction
equals space cot space 17 degree space tan space 17 degree space cos squared 22 degree space plus space fraction numerator 1 over denominator sec squared 68 degree end fraction
space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space open square brackets because space space cot space 73 degree space equals space tan space left parenthesis 90 degree space minus space 17 degree right parenthesis close square brackets
equals space cos squared 22 degree space plus space cos squared 68 degree
equals space cos squared 22 degree space plus space sin squared left parenthesis 90 degree space minus space 22 degree right parenthesis
equals space cos squared 22 degree space plus space sin squared 22 degree
space equals space 1 space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space open square brackets because space space sin squared straight theta space plus space cos squared straight theta space equals space 1 close square brackets

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72.

Study the pie-chart and answer the following questions:
The following pie-chart shows the marks scored by a student in different subjects - viz. Physics (Ph), Chemistry (Ch), Mathematics (M), Social Science (SS) and English (E) in an examination. Assuming that total marks obtained for the examination is 810.

The difference of marks between Physics and Chemistry is same as that between:

  • Chemistry and Social Science

  • Physics and English

  • Mathematics and English

  • English and Social Science

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73.

Study the pie-chart and answer the following questions:
The following pie-chart shows the marks scored by a student in different subjects - viz. Physics (Ph), Chemistry (Ch), Mathematics (M), Social Science (SS) and English (E) in an examination. Assuming that total marks obtained for the examination is 810.

The marks obtained in Mathematics and Chemistry exceed the marks obtained in Physics and Social Science by:

  • 50

  • 30

  • 40

  • 45

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74.

Study the pie-chart and answer the following questions:
The following pie-chart shows the marks scored by a student in different subjects - viz. Physics (Ph), Chemistry (Ch), Mathematics (M), Social Science (SS) and English (E) in an examination. Assuming that total marks obtained for the examination is 810.

The subject in which the student obtained 135 marks is

  • English

  • Physics

  • Chemistry

  • Mathematics

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75.

Study the pie-chart and answer the following questions:
The following pie-chart shows the marks scored by a student in different subjects - viz. Physics (Ph), Chemistry (Ch), Mathematics (M), Social Science (SS) and English (E) in an examination. Assuming that total marks obtained for the examination is 810.

The marks obtained in English, Physics and Social Science exceed the marks obtained in Mathematics and Chemistry by:

  • 25%

  • 10%

  • 10 1 over 9 percent sign

  • 11%

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