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A village, having a population of 4000, requires 150 litres water per head per day. It has a tank which is 20 m long, 15 m broad and 6 m high. For how many days will the water of this tank last?
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A rectangular field is 70 m long and 60 m broad. A well of dimensions 14 m × 8 m × 6 m is dug outside the field and the earth dug-out from this well is spread evenly on the field. How much will the earth level rise?
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A swimming pool is 250 m long and 130 m wide. 3250 cubic metres of water is pumped into it. Find the rise in the level of water.
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The rainfall on a certain day was 6 cm. How many litres of water fell on 3 hectares of field on that day?
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An 8 m long cuboidal beam of wood when sliced produces four thousand 1 cm cubes and there is no wastage of wood in this process. If one edge of the beam is 0.5 m, find the third edge.
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A solid rectangular piece of iron measures 6 m by 6 cm by 2 cm. Find the weight of this piece, if 1 cm3 of iron weighs 8 gm.
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Find the surface area of a cuboid whose length = 10 cm, breadth = 12 cm, height = 14 cm.
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Find the surface area of a cuboid whose length = 6 dm, breadth = 8 dm, height = 10 dm.
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Find the surface area of a cuboid whose llength = 2 m, breadth = 4 m, height = 5 m .
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Find the surface area of a cuboid whoselength = 3.2 m, breadth = 30 dm, height = 250 cm.
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A cuboidal box is 5 cm by 5 cm by 4 cm. Find its surface area.
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The dimensions of a cuboid are in the ratio 5 : 3 : 1 and its total surface area is 414 m2. Find the dimensions.
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Find the area of the cardboard required to make a closed box of length 25 cm, 0.5 m and height 15 cm.
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The dimensions of an oil tin are 26 cm × 26 cm × 45 cm. Find the area of the tin sheet required for making 20 such tins. If 1 square metre of the tin sheet costs Rs 10, find the cost of tin sheet used for these 20 tins.
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A cloassroom is 11 m long, 8 m wide and 5 m high. Find the sum of the areas of its floor and the four walls (including doors, windows, etc.)
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A swimming pool is 20 m long 15 m wide and 3 m deep. Find the cost of repairing the floor and wall at the rate of Rs 25 per square metre.
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The perimeter of a floor of a room is 30 m and its height is 3 m. Find the area of four walls of the room.
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Show that the product of the areas of the floor and two adjacent walls of a cuboid is the square of its volume.
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The walls and ceiling of a room are to be plastered. The length, breadth and height of the room are 4.5 m, 3 m and 350 cm, respectively. Find the cost of plastering at the rate of Rs 8 per square metre.
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A cuboid has total surface area of 50 m2 and lateral surface area is 30 m2. Find the area of its base.
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