In a building there are $24$ cylindrical pillars. The radius of each pillar is $28 \mathrm{cm}$ and height is $4 \mathrm{m}$. Find the total cost of painting the curved surface area of all pillars at the rate of $₹8 \mathrm{per} {\mathrm{m}}^2$.

The marks scored by $40$ students of class $\mathrm{VIII}$ in mathematics are given below-

$81 85 68 79 85 43 29 68 54 73 47 35 72 64 95 44 50 77 64 35 79 52 45 54 70 83 62 64 72 92 84 76 63 43 54 38 73 68 52 54$.

Prepare frequency distribution with class size of $10$ marks.

Look at the histogram and answer the following questions.

(i) What information is being given by the histogram?

(ii) Which group contains maximum girls?

(iii) How many girls have a height of $145 \mathrm{cm}$ or more?

(iv) If we divide the girls into following three categories, how many would there be in each: $150 \mathrm{cm}$ or more-Group A, $140 \mathrm{cm}$ to less than $150 \mathrm{cm}$-Group B, less than $140 \mathrm{cm}$-Group C.

Construct a pie diagram for the following data in which the population of students of a university is given.

The runs scored by a cricket team in first $10$ overs are given below-

Draw a graph representing the data.