Question

write the upper class limit and the lower class limit of the class 30-40

Answer 1

Ans : Lower class is 30
Upper class is 40

Answer 2

this is a question in which most of the students get confused I am a mathematics teacher and hence no the fact that many of the children are confused between class size and class intervals and upper class and lower classes




to get you clear ,



I would explain this concept in very simple words





whenever you are given a class interval , you can blindly say that the number which has less value is the lower class and the number with higher value is the upper class so in this case 30 is the lower class and 40 is the upper class limit