dharam juddha - demo class

Let L be the lower class boundary of a class in a frequency distribution and m be the midpoint of the class. Which one of the following is the upper class boundary of the class.

Let Ube the upper class boundary of a class in a frequency distribution and Mbe the mid-point of the class. Which one of the following is the lower class boundary of the class?

Super Class - Terapods (Class - Amphibia)|OMR|Super Class - Terapods (Class - Reptilia)|Super Class - Terapods (Class - Aves)|OMR|Summary

If the width of each of the ten classes in frequency distribution is 2.5 and the lower class boundary of the lowest class is 5.1, then the upper class boundary of the highest class IS

In a frequency distribution table with 12 classes, the class-width is 2.5 and the lowest class boundary is 8.1, then what is the upper class boundary of the highest class?