Mathematics
The cost of papering the four walls of a room 12 m long at ₹ 6.50 per square metre is ₹ 1,638 and the cost of matting the floor at ₹ 3.50 per square metre is ₹ 378. Find the height of the room.
Related Questions
The volume of a cuboid is 14400 cm3 and its height is 15 cm. The cross-section of the cuboid is a rectangle having its sides in the ratio 5 : 3. Find the perimeter of the cross-section.
The area of a path is 6500 m2. Find the cost of covering it with gravel 14 cm deep at the rate of ₹ 5.60 per cubic metre.
The dimensions of a field are 15 m × 12 m. A pit 7.5 m × 6 m × 1.5 m is dug in one corner of the field and the earth removed from it, is evenly spread over the remaining area of the field. Calculate, by how much the level of the field is raised.
The sum of the length, breadth and depth of cuboid is 19 cm and the length of its diagonal is 11 cm. Find the surface area of the cuboid.