Answer:
[tex] \boxed{it \: is \: (\frac{(k - 12)}{8} )\times 10^2 \: \: times \: more}[/tex]
Step-by-step explanation:
[tex]............................................................... \\ to \: find \: this\: ans :we \: find \: the \: ratio \\ of \: the \: overall \: number \: of \: students \: to \: \\ the \: aveerage \: number \:o f \:students \\ ............................................................... \\ans \: = \frac{overall \: number \: of \: students}{aveerage \: number \:o f \:students} = \frac{k - 12}{8 \times 10^2} \\ therefore \: it \: is \: (\frac{(k - 12)}{8} )\times 10^2 \: \: times \: more.[/tex]