Question

A manufacturer involved ten children in colouring playing top (lattu) which is shaped like a cone surmounted by a hemisphere. The entire top is 5 cm in height and the diameter of the top is 3.5 cm. Find the area they had to paint if 50 playing tops were given to them. (Takeπ =22/7)

(i) How is child labour an abuse for the society?
(ii) What steps can be taken to abolish child labour?

Answer 1

This top is exactly like the object shown in Fig.
Total surface area of the top = Curved surface area of hemisphere + Curved surface

surface
area of cone Now, the curved surface area of hemisphere=2πr²

Surface area to be painted = 50 × 39.6 cm² = 1980 cm²

(a) Children are the future of any society or country and they possess various talents. So, providing them opportunities to grow by giving proper education instead of involving them in work will help in the development of society. With education and proper nurture of their talent, they can contribute in a better way for the development of society and the country.

(b) (i) Spreading awareness against child labour in the society.
(ii) Abolishing the use of products involving child labour.
(iii) Providing free education at elementary level to poor children.
(iv) Enforcing the law to abolish child labour.