Question

Class marks of the classes are 30 and 40, find C.I.
0​

Answer 1

Answer:

Your answer is 10

Step-by-step explanation:

Just subtract lower limit 30 from upper limit 40

i.e. 40 - 30

= 10

Your required answer

Answer 2

Answer:

class mark of class 20-30=20+30/2 = 25

and class mark of class 30-40 = 30+40/2

=35