Question

Which section has the maximum success rate in annual examination?

• A. A Section
• B. B Section
• C. C Section
• D. D Section

Answer 1

Answer: (A)

A Section

Total number of students passed in annual exams in a section
$=$ [(No. of students failed in half-yearly but passed in annual exams) $+$ (No. of students passed in both exams)] in that section
$\therefore$ Success rate in annual exams in Section A
$=[\frac{\text{No. of students of Section A passed in annual exams}}{\text{Total number of students in Section A}}\times 100]$%
$=[\frac{(14+64)}{(28+14+6+64)}\times 100]$%
$=[\frac{78}{112}\times 100]$%
$=69.64$%.
Similarly, success rate in annual exams in:
Section B $[\frac{(12+55)}{(23+12+17+55)}\times 100]$% $=[\frac{67}{107}\times 100]$% $=62.62$%.
Section C $[\frac{(8+46)}{(17+8+9+46)}\times 100]$% $=[\frac{54}{80}\times 100]$% $=67.5$%.
Section D $[\frac{(13+76)}{(27+13+15+76)}\times 100]$% $=[\frac{89}{131}\times 100]$% $=67.94$%.
Clearly, the success rate in annual examination is maximum for Section A.