Advertisements
Advertisements
प्रश्न
Find the weight of solid rectangular iron piece of size 50 cm × 40 cm × 10cm, if 1 cm3 of iron weighs 8 gm.
Advertisements
उत्तर
\[\text { The dimension of the rectangular piece of iron is 50 cm }\times 40 cm \times 10 cm . \]
\[\text { i . e . , volume } = 50 cm \times 40 cm \times 10 cm = 20000 {cm}^3 \]
\[\text { It is given that the weight of 1 }{cm}^3 \text { of iron is 8 gm } . \]
\[ \therefore \text { The weight of the given piece of iron = 20000 } \times 8 gm\]
\[ = 160000 gm\]
\[ = 160 \times 1000 gm\]
\[ = 160 kg ( \because 1 kg = 1000 gm)\]
संबंधित प्रश्न
Shanti Sweets Stall was placing an order for making cardboard boxes for packing their sweets. Two sizes of boxes were required. The bigger of dimensions 25 cm × 20 cm × 5 cm and the smaller of dimensions 15 cm × 12 cm × 5 cm. For all the overlaps, 5% of the total surface area is required extra. If the cost of the cardboard is Rs 4 for 1000 cm2, find the cost of cardboard required for supplying 250 boxes of each kind.
Find the height of a cuboid whose base area is 180 cm2 and volume is 900 cm3?
Find the volume in cubic metre (cu. m) of the cuboid whose dimensions islength = 4 m, breadth = 2.5 m, height = 50 cm.
The length , breadth and height of a room are 5 m, 4.5 m and 3 m, respectively. Find the volume of the air it contains.
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?
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.
If two cubes each of side 6 cm are joined face to face, then find the volume of the resulting cuboid.
Volume of a cuboid is 12 cm3. The volume (in cm3) of a cuboid whose sides are double of the above cuboid is
A closed rectangular box is made of wood of 1.5 cm thickness. The exterior length and breadth are respectively 78 cm and 19 cm, and the capacity of the box is 15 cubic decimeters. Calculate the exterior height of the box.
How many persons can be accommodated in a big-hall of dimensions 40 m, 25 m, and 15 m; assuming that each person requires 5 m3 of air?
