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For the class 10-25, the class mark is:
A15.0
B25.0
C12.5
D17.5
Answer & Solution
Correct answer: D. 17.5
1. Add 10 and 25 to get 35.
2. Halve it.
3. The class mark is 17.5.
_Source: NCERT Class 10 Mathematics, Chapter 14, Statistics._
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