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Question
Find the class marks of the classes 20 – 50 and 35 – 60.
Sum
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Solution
Class mark of 20 – 50
= `(20 + 50)/2`
= `70/2`
= 35
And class mark of 35 – 60
= `(35 + 60)/2`
= `95/2`
= 47.5
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