the average marks obtained by the candidates who passed and those who failed in an examination are 60 and 25 respectively. the average marks obtained by all the candidates who appeared for the examination is more than 43 but not more than 49. the number of candidates who passed as a fraction of the total number of candidates who appeared for the examination could never be?
1 thought on “the average marks obtained by the candidates who passed and those who failed in an examination are 60 and 25 respectively. the ave”