Can someone please tell the answer of this question? please

Dear Student,

Given : The class marks of a frequency distribution are 26,31,36,41,46,51.

To find : true class limits 

Solution :

The limit range between class marks is given by,

$\frac{31-26}{2} = \frac{5}{2} = 2.5$

So, the true class limits are

23.5 - 28.5

28.5 - 33.5

33.5 - 38.5

38.5 - 43.5

43.5 - 48.5

48.5 - 53.5

Regards.