Question
Find the class marks of the classes $20-50$ and $35-60$.
✓
Answer
$\text { Class marks }=\frac{\text { lower limit }+ \text { upper limit }}{2}$
$\text { Class }-20-50$
$\text { Class marks }=\frac{20+50}{2}=\frac{70}{2}=35$
$\text { Class }-35-60$
$\text { Class marks }=\frac{35+60}{2}=\frac{95}{2}=47.5$
$\text { Class }-20-50$
$\text { Class marks }=\frac{20+50}{2}=\frac{70}{2}=35$
$\text { Class }-35-60$
$\text { Class marks }=\frac{35+60}{2}=\frac{95}{2}=47.5$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Define Mean.
If $\sin \theta=\frac{4}{5}$, what is the value of $\cot \theta+\operatorname{cosec} \theta?$
→Write the standard form of a cubic polynomial with real coefficients.
A black die and a white die are thrown at the same time. Write all the possible outcomes. What is the probability?
Of obtaining the same number on both dice?
Of obtaining the same number on both dice?
In a simultaneous throw of pair of dice, find the probability of getting:
A doublet.
A doublet.
Evaluate the following:
$\cos45^\circ\cos30^\circ+\sin45^\circ\sin30^\circ$
→$\cos45^\circ\cos30^\circ+\sin45^\circ\sin30^\circ$
If $\theta=45^{\circ}$, then find the value of $2 \operatorname{cosec}^2 \theta+3 \sec ^2 \theta$.
→A black die and a white die are thrown at the same time. Write all the possible outcomes. What is the probability?
Of obtaining a total of 6?
Of obtaining a total of 6?
If the numerical value of the area of a circle is equal to the numerical value of its circumference, find its radius.
In fig. is a sector of circle of radius 10.5cm. Find the perimeter of the sector. $\Big(\text{Take}\ \pi=\frac{22}{7}\Big)$ 
→