The length of radius of cross-section of...

The length of radius of cross-section of a solid circular rod is 3.2 dcm. By melting the rod 21 solid sphere are made. If the radius of the sphere is 8 cm , then find the length of the rod.

Topper's Solved these Questions

JHOWDANGA SAMMILANI HIGH SCHOOL
UNITED BOOK HOUSE|Exercise EXERCISE|55 Videos
MISCELLANEOUS EXERCISE
UNITED BOOK HOUSE|Exercise EXERCISE|95 Videos

Similar Questions

Explore conceptually related problems

The length of the radius of cross section of a solid right circular rod is 3.2 dcm. By melting the rod 21 solid spheres are made. If the radius of the sphere is 8cm, then find the length of the rod.

The radius of cross - section of a right circular rod is 3.2 dcm . The rod is melted to make 21 solid spheres . If the rdius of each sphere be 8 cm , then what will be the length of the rod ?

If the volume of the solid sphere be 38808 c.c, then the radius of the sphere is

The length of radius of base of a solid right circular cone is equal to the length of radius of a solid sphere . If the volume of the sphere is 2 times the volume of the cone , then find the ratio of the height and radius of base of the cone .

If a solid right circular rod of length 1 dcm is made by melting a solid silver - sphere of diameter 6 dcm, then find the radius of the rod.

The external radius of a hollow sphere made of lead sheet of 1 cm thickness in 6cm.. If melting the sphere, a solid circular rod of 2cm radius is made, then find the length of the rod.

The lengths of radii of a solid right crcular cone and a solid sphere are equal. If their - volumes be also equal, then find the ratio of the radius of the sphere and the height of the cone.

The radius of base of a solid right circular iron - rod is 32 cm and the length of the rod is 35 cm . How many solid right circular cone of radius of base 8 cm and of height 28 cm can be made by melting this rod ?

The ratio of the volumes of a right circular cylinder and a sphere is 3:2. If the radius of the sphere is double the radius of the cylinder, then find the ratio of area of whole surface of the sphere and the cylinder

UNITED BOOK HOUSE-KANACHI HIGH SCHOOL-EXERCISE

If a alpha b and b alpha c, show that a^3+b^3+c^3 alpha 5 abc.
Text Solution
|
If a^2/(b+c)=b^2/(c+a)=c^2/(a+b)=1, show that 1/(1+a)+1/(1+b)+1/(1+c)=...
Text Solution
|
If x/(lm-n^2)=y/(mn-l^2)=z/(nl-m^2), then show that lx+my+nz=0
Text Solution
|
Answer any One queation : Prove that, if a perpendicular is draw on t...
Text Solution
|
Prove that if two tangents are drawn to a circle from a point outside ...
Text Solution
|
ABCD is a cyclic quadrilaterla. Extended AB and DC intersect at P. Pr...
Text Solution
|
A straight line intersects one of the two concentric circles at the po...
Text Solution
|
Draw the incircle of an equilateral triangle of side 7 cm.
Text Solution
|
Geometrically find the value of sqrt(21),
Text Solution
|
Sum of two angles is 135^@ and their difference is pi^c/12. Find the s...
Text Solution
|
If sin theta+ sin^2 theta = 1, prove that cos^2 theta+ cos^4 theta = ...
Text Solution
|
If x tan 30^@ + y cot 60^@ = 0,2x-y tan 45^@ = 1, then find the value ...
Text Solution
|
The height of two towers are 180 metres and 60 metres respectively. If...
Text Solution
|
A telegraph post is bent at a point above the ground due to storm. Its...
Text Solution
|
The length of radius of cross-section of a solid circular rod is 3.2 d...
Text Solution
|
The ratio of length breadth and height of a cuboid is 3:2:1 and its vo...
Text Solution
|
Three spheres made of copper having the lengths of 3 cm. 4 cm and 5 cm...
Text Solution
|
Ages of 100 patients in a hospital of Mahidual's locaity are given bel...
Text Solution
|
Find the median of heights of the students from the following frequenc...
Text Solution
|
Calculate the mode of the following frequency distribution table.
Text Solution
|