A garden is in the shape shown below, with two semicircles on the shorter sides of a rectangle of sides 30 m and 20 m. What is the cost of planting grass in it, if the rate is Rs 25 for each square meter.

The figure shown below is formed by a rectangle with semicircles on each of its four sides. If the sides of the rectangle are 16 cm and 12 cm, what is the area of the figure?

The tent for an exhibition is as shown below, with a half - cylinder on top of a rectangular prism. What is the cost of making it, at the rate of 2000 rupees per square meter?

A sawn wood has the shape of a rectangular block. Its length, breadth and height are 3 m, 30 cm and 25 cm. respectively. What will be the cost if one cubic metre costs ₹ 2500 ?

A tank with rectangular base and rectangular sides, open at the top is to be constructed so that its depth is 2 m and volume is 8m^3 . If the building of tank costs Rs. 70//sq metres for the base and Rs. 45//_"square" metres. For sides, what is the cost of least expensive tank?

A rope of length 40 metres is cut into two pieces and two squares are made on the floor with them. The sum of the. area enclosed is 58 square meter. a) If the length of one piecce is taken as 'x', what is the. length of the other piece. b) What are the lengths of the sides of the squares? c) Write the. given fact about area as an algebraic equation. d) What is the length of each piece?

The body of a lorry has length 8 m , breadth 3 m and height 1 m . It is filled with cowdung. If it is measured by a biscuit tin (without lid) how many tin of cowdung does it contain? What is the total cost, if one tin costs Rs. 15 ? The tin has a length of 20 cm , breadth of 15 cm and height of 30 cm