Advertisements
Advertisements
प्रश्न
A patient in a hospital is given soup daily in a cylindrical bowl of diameter 7 cm. If the bowl is filled with soup to a height of 4 cm, how much soup the hospital has to prepare daily to serve 250 patients?
`["Assume "pi=22/7]`
उत्तर
Radius (r) of cylindrical bowl = (7/2)cm = 3.5cm
Height (h) of bowl, up to which bowl is filled with soup = 4 cm
Volume of soup in 1 bowl = πr2h
`=(22/7xx(3.5)^2xx4)cm^3`
= (11 × 3.5 × 4) cm3
= 154 cm3
Volume of soup given to 250 patients = (250 × 154) cm3
= 38500 cm3
= 38.5 litres.
APPEARS IN
संबंधित प्रश्न
Diameter of cylinder A is 7 cm, and the height is 14 cm. Diameter of cylinder B is 14 cm and height is 7 cm. Without doing any calculations can you suggest whose volume is greater? Verify it by finding the volume of both the cylinders. Check whether the cylinder with greater volume also has greater surface area?
Water flows, at 9 km per hour, through a cylindrical pipe of cross-sectional area 25 cm2. If this water is collected into a rectangular cistern of imensions 7.5 m by 5 m by 4 m; calculate therise in level in the cistern in 1 hour 15 minutes.
Calculate:
(a) the total surface area,
(b) the total volume of the solid and
(c) the density of the material if its total weight is 1.7 kg..
What length of solid cylinder 2 cm in diameter must be taken to recast into a hollow cylinder of external diameter 20 cm, 0.25 cm thickand 15 cm long?
A circular tank of diameter 2 m is dug and the earth removed is spread uniformly all around the tank to form an embankment 2 m in width and 1.6 m in height. Find the depth of the circular tank.
The total surface area of a solid cylinder is 616 cm2. If the ratio between its curved surface area and total surface area is 1 : 2; find the volume of the cylinder.
A 14 m deep well with inner diameter 10 m is dug and the earth taken out is evenly spread all around the well to form an embankment of width 5 m. Find the height of the embankment.
If the circumference of a conical wooden piece is 484 cm then find its volume when its height is 105 cm.
The ratio of the volumes of a cylinder, a cone and a sphere, if each has the same diameter and same height is
The volume of a cylinder becomes ______ the original volume if its radius becomes half of the original radius.
Volume of a cylinder is 330 cm3. The volume of the cone having same radius and height as that of the given cylinder is:
