Which Indian cricketer is known as "Brown Bradman"?
Which of the countries has had a prime minister whose name featured the name of his country?
Which of the gulf city was a dependency of Bombay Presidency under British rule for almost a century?
Which of the following Pair are not parent and child who have both won the Nobel prize?
Which of these scientist was inspired to make its famous discovery in a sea voyage in 1921?
Which singer was originally named Eileen Angelina Yeoward?
Which is the only talkie film directed by Dada Saheb Phalke?
Which Shakespeare play was translated by the Bhartendu Harishchandra with the title Durlabh Bandhu, published in 1880?
Which company started by Europeans in Calcutta in 1818 was the first modern life insurance company established in India?
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A metal cylinder of base 5 cm and height 12 cm is melted to make n solid cones of height 1 cm and base radius 1 mm.
What is the value of n?
The volume of the cylinder must be equal to the volume of n cones
Volume of the cylinder V = pi x 5^2 x 12
Volume of n cones V = n x (pi x 0,1^2 x 1)/ 3
pi x 25 x 12 = n x (pi x 0,01 x 1)/3
n = 90000 cones
5 solid spheres of radius 2 m, 7 solid cylinder of radius 3 m, height 7 meter and 4 solid cones of radius 5 m, height 8 m are melted to form a bigger solid sphere. What is the radius of this bigger solid sphere in meters?
11 solid spheres of radius 3 m, 9 solid cylinder of radius 4 m, height 5 meter and 13 solid cones of radius 2 m, height 4 m are melted to form a bigger solid sphere. What is the radius of this bigger solid sphere in meters?
2 solid spheres of radius 3 m, 3 solid cylinder of radius 2 m, height 3 meter and 2 solid cones of radius 2 m, height 4 m are melted to form a bigger solid sphere. What is the radius of this bigger solid sphere in meters?
A cylinder of base radius r and height h is dipped vertically to half the height in a bucket full of purple paint. Find the area of the surface which get painted?
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