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The correct answer is D
If the length of certain rectangle is decreased by 4 cm and breadth is increased by 2 cm, it would result in a square of the same area. What is the peri...
A solid spherical gold ball having a radius of 10 cm is melted to form smaller balls of radius 5 mm each. Find the number of such...
What is the volume (in cm3) of the metal used to make a spherical shell whose inner and outer radii are respectively 5 cm and 8 cm?
The sum of the total surface areas of two cubes is 1926 cm2. If the product of the length of their edges is 136 cm2, then find the...
The cost of painting the walls of a room 8 meter long and 10 meter wide at Rs 22.5 square per meter is 7290. What is the height of the room?
The breadth of a rectangular hall is 8/25 of its length. If the area of the floor is 200 sq. m., then the difference between the length and breadth of t...
If A’s income is 60% more of B’s income and B’s income is 40% less than C’s income, then by what percent is C’s income mor...
Length and breadth of a rectangle are in the ratio 2:5. If the perimeter of the rectangle is 36 cm more than the length of the rectangle, then find the ...
Find the length of a wire radius 0.40 cm which can completely cover the surface of a cylinder whose height is 1.6m and base radius 21 cm?
