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?

The inner diameter of a well is 2.5 meter and it is 8 meters deep. What would be the cost of cementing its inside. at 350 rupees per square meter?

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 inner diameter of a well 2.5 metres and it is 8 metres deep. What would be the cost of cementing its inside from the top to a depth 2 1/2 metres at the rate of 350 rupees per square metre?

A toy in the shape of a square pyramid of base edge 16 centimetres and slant height 10 centimetres. What is the total cost of painting 500 such toys, at 80 rupees per square metre?

Two identical prisms with triangle as base are joined to form a rectangular prism as shown below:What is its total surface area?

A toy is in the shape of a square pyramid of base edge16 centimetres and slant height 10 centimetres. What.is the total cost of painting 500 such toys, at 80 rupees per square metre? .

A conical firework is of base-diameter 10 centimetres and height 12 centimetres. 10000 such fireworks are to be wrapped in colour paper. The price of the colour paper is 2 rupees per square metre. What is the totäl cost?

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?

The Experiment data for decomposition of N{2}O{5} [2N{2}O{5}rarr4NO{5}+O{2}] is gas phase at 318 K are given below: i) Plot [N{2}O{5}] against t. ii) Find the half-life period for the reaction. iii) Draw a graph between log [N{2}){5}] and t iv) What is the rate law Calculate the rate constant. vi) Calculate the half life period from K and compare it with(2) t/s=0,400,800,1200,1600,2000,2400,2800,3200 and [N2O5]=1.63,1.36,1.14,0.93,0.78,0.64,0.53,0.43,0.35 respectively