Find the class marks of class interval 70-80
Answers
Answered by
41
Class mark= lower class + upper marks
______________________
2
= 70+80
_____
2
=150
_____
2
= 75
hence class mark= 75
______________________
2
= 70+80
_____
2
=150
_____
2
= 75
hence class mark= 75
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Answered by
10
Answer:75
Step-by-step explanation:(70+80)/2
=150/2
=75
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