Question
A spherical metal ball is melted into a shape of
cylinder mounted by a cone such that the base of cone exactly overlaps the top base of cylinder. The diameter of the cylinder and sphere is 4.2 m each. What is the height (in m) of the cone if the height of cylinder is 1.4 m?ÂSolution
The correct answer is C
The angle of elevation of the top of a tower from a point on the ground which is 45 meters. away from the foot of the tower is 30°. The height of the t...
In a village, number of males, female and children are in the ratio of 3:5:7. If 90% of the males are literate, 80% of females are literate and 40% of c...
The perimeter of a rhombus is 36 m and its height is 8 m. Its area is:
The surface area of the two spheres are in the ratio9:16. Their volumes will be in the ratio
A rectangle is 14 cm long and 10 cm wide. A semicircle is attached on the 14 cm side (diameter = 14 cm). Find total area. (Take π = 22/7)
The perimeter of a rectangle is 110% more than perimeter of a square of side 20 cm. If the length of rectangle is 240% more than side of square then fin...
A rectangular shaped pit of length 10 ft and breadth 8 ft is made in a rectangular field of length 32 ft and breadth 20 ft. The earth dug out of the pi...
A cylindrical drum has internal radius 2 m and height 3.5 m. Find its volume. Take π = 22/7.
A circular clock has the hour hand of length 6 inch. Find the length of the distance it covers by it's tip from 9 p.m. to 3 a.m.
The area of a square is 441 square centimeters whose side is half the radius of a circle The circumference of a circle is equal to the width of a rectan...
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