13. Three mark exercise problems V

In a school excursion, \(6\) teachers and \(12\) students from \(6^{th}\) standard and \(9\) teachers and \(27\) students from \(7^{th}\) standard, \(4\) teachers and \(16\) students from \(8^{th}\) standard took part. Which class has the least teacher to student ratio?

 

 

7th8th6th standard has the least teacher to student ratio.