Advertisements
Advertisements
Question
The dimensions of a Cinema Hall are 100 m, 60 m, and 15 m. How many persons can sit in the hall if each requires 150 m3 of air?
Advertisements
Solution
Volume of cinema hall = 100 x 60 x 15 = 90000 m3
150 m3 requires = 1 persons
90000 m3 requires = `1/150 xx 90000 = 600 "persons"`
Therefore, 600 persons can sit in the hall.
APPEARS IN
RELATED QUESTIONS
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 volume in cubic metre (cu. m) of the cuboid whose dimensions is length = 10 m, breadth = 25 dm, height = 50 cm.
Find the surface area of a cuboid whose length = 6 dm, breadth = 8 dm, height = 10 dm.
The total surface area of a cube is 216 cm2. Find its volume.
The ratio between the curved surface area and the total surface area of a cylinder is 1: 2. Find the ratio between the height and the radius of the cylinder.
A cylindrical pillar has a radius of 21 cm and a height of 4 m. Find:
- The curved surface area of the pillar.
- cost of polishing 36 such cylindrical pillars at the rate of ₹12 per m2.
The dimensions of a cuboidal box are 6 m × 400 cm × 1.5 m. Find the cost of painting its entire outer surface at the rate of ₹ 22 per m2.
The total surface area of a cuboid with dimension 10 cm × 6 cm × 5 cm is
Opposite faces of a cuboid are ______ in area.
Find the capacity of water tank, in litres, whose dimensions are 4.2 m, 3 m and 1.8 m?
