MCQ
Find the class marks of classes $10-20$ and $35-55$.
- A10,35
- B20,55
- ✓15,45
- D17.5,45
✓
Answer
Correct option: C.
15,45
(c) : Class mark of class $10-20=\frac{10+20}{2}=15$ Class mark of class 35-55 $=\frac{35+55}{2}=45$
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