MCQ
The class mark of the class $90 - 120$ is:
- A$90$
- ✓$105$
- C$11$
- D$120$
✓
Answer
Correct option: B.
$105$
$\text{class marks} = \frac{\text{upperlimit + lower limit}}{2}\Rightarrow \frac{120+90}{2} = \frac{210}{2} = {105}$
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