15. The following table gives performance of 500 students in four tests: Age group (I) (II) (III) (IV) Average Marks65 65 60 82 Range of Marks 25-85 15-100 55-750-100A stutend scores 74 marks in each test, Comparatively in which test he perfomed best?

(I)
(II)
(III)
(IV)

Detailed SolutionThe following table gives performance of 500 students in four tests: Age group (I) (II) (III) (IV) Average Marks65 65 60 82 Range of Marks 25-85 15-100 55-750-100A stutend scores 74 marks in each test, Comparatively in which test he perfomed best?

16. For a certain year, the percentage of the total population by age-group is as follows: Age-Group in years Percentage15 years or less 30 16-25 17.75 26-25 17.25 36-45 14.50 46-55 14.25 56-65 5.12 66 and above 1.13 If 200 million people were below 36 years in age, approximately how many million will be in the age group 56 – 65 ?

12.75
14.9
15.75
None of the above

Detailed SolutionFor a certain year, the percentage of the total population by age-group is as follows: Age-Group in years Percentage15 years or less 30 16-25 17.75 26-25 17.25 36-45 14.50 46-55 14.25 56-65 5.12 66 and above 1.13 If 200 million people were below 36 years in age, approximately how many million will be in the age group 56 – 65 ?