Mathematics
A swimming pool is 40 m long and 15 m wide. Its shallow and deep ends are 1.5 m and 3 m deep respectively. If the bottom of the pool slopes uniformly, find the amount of water in litres required to fill the pool.
Related Questions
The square on the diagonal of a cube has an area of 1875 sq. cm. Calculate :
(i) the side of the cube.
(ii) the total surface area of the cube.
The following figure shows a solid of uniform cross-section. Find the volume of the solid. All measurements are in centimetres. Assume that all angles in the figure are right angles.
The cross-section of a tunnel perpendicular to its length is a trapezium ABCD as shown in the following figure; also given that : AM = BN; AB = 7 m; CD = 5 m. The height of the tunnel is 2.4 m. The tunnel is 40 m long. Calculate :
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(ii) the cost of paving the floor at the rate of ₹ 18 per m2.
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(ii) in litres per minute.