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Byju's Answer
Standard X
Mathematics
Class Interval
What is the c...
Question
What is the class-mark of class
25
−
35
?
A
25
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B
35
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C
60
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D
30
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Solution
The correct option is
D
30
Class-mark of
25
−
35
=
25
+
35
2
=
30
Hence, option D
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