Question

in classes 10-20,20-30...20 is involved in which class???​

Answer 1

Answer:

It's involved in class 2 i.e. 20-30 group.....as the class type you have mentioned is exclusive (excluding the upper limit). The upper limit is to be considered as the lower limit of the next class

Answer 2

Step-by-step explanation:

it is involved in 20-30 group